1/153 0.09-2.43 aaa 在数学的世界里面有两个超级常数,08-30 20:27:42-08-30 20:27:44In the world of mathematics, there are two super constants,
2/153 2.73-3.39 de 家喻户晓,08-30 20:32:44-08-30 20:32:56Well-known,
3/153 3.57-4.59 n 一个是圆周率派,08-30 20:27:43-08-30 20:27:44One is Pi,
4/153 4.89-5.85 n 这个大家都能理解,08-30 20:27:44-08-30 20:27:45This is something everyone can understand.
5/153 6.15-8.91 hp 就是圆的周长除以直径直观又好记。08-30 20:27:44-08-30 20:27:50The circumference of a circle divided by its diameter is an intuitive and easy-to-remember formula.
6/153 9.27-11.43 jd 但另外一个常数 e二点七一八,08-30 20:27:45-08-30 20:27:47However, another constant, e, which is approximately 2.718,
7/153 11.79-13.41 aaa 很多人就觉得有点莫名其妙了。08-30 20:27:46-08-30 20:27:47Many people found it quite strange.
8/153 13.59-16.41 n 为什么这个看起来毫无规律的无限不循环小数,08-30 20:27:46-08-30 20:27:50Why does this seemingly random, infinite non-repeating decimal look like it?
9/153 16.71-18.45 n 能跟圆周率平起平坐,08-30 20:27:47-08-30 20:27:49Can stand shoulder to shoulder with Pi,
10/153 18.75-21.15 aaa 甚至在微积分和高等数学里无处不在。08-30 20:27:48-08-30 20:27:49It is ubiquitous, even in calculus and higher mathematics.
11/153 21.45-24.03 jd 人们甚至还专门把它叫做自然对数的底数,08-30 20:27:48-08-30 20:27:50People even specifically call it the base of the natural logarithm.
12/153 24.21-25.59 n 那它到底自然在哪里?08-30 20:27:50-08-30 20:27:51Where is it exactly located in nature?
13/153 25.77-26.85 aaa 它又是怎么来的呢?08-30 20:27:51-08-30 20:27:52How did it come about?
14/153 27.03-27.81 n 要回答这个问题,08-30 20:27:51-08-30 20:27:52To answer this question,
15/153 27.99-30.58 hp 我们得首先回答一个更深层次的终极发问。08-30 20:27:52-08-30 20:27:55We must first answer a deeper, ultimate question.
16/153 31.12-32.68 jd 数学里面的这些特殊的书,08-30 20:27:53-08-30 20:27:54These special books in mathematics,
17/153 33.04-34.72 n 到底是人类凭空发明的,08-30 20:27:53-08-30 20:27:55It was invented by humans,
18/153 34.9-36.88 bg 还是在宇宙中被我们发现的?08-30 20:27:54-08-30 20:28:31Have we discovered it in the universe?
19/153 37.24-38.5 aaa 只要想清楚这件事情,08-30 20:27:55-08-30 20:27:56As long as you think about it carefully,
20/153 38.62-40.96 n 你才能真正理解意到底有多神奇。08-30 20:27:56-08-30 20:27:58Only then can you truly understand how amazing the meaning is.
21/153 41.56-42.16 jd 要搞懂易,08-30 20:27:56-08-30 20:27:57To understand Yi,
22/153 42.28-43.36 n 我们得先从一个最俗气,08-30 20:27:57-08-30 20:27:59We need to start from the most basic,
23/153 43.48-45.46 hp 但也最直观的事情聊起来就是存钱。08-30 20:27:58-08-30 20:28:02But the most obvious thing to talk about is saving money.
24/153 46.18-47.68 aaa 假设有一家慷慨的银行,08-30 20:27:59-08-30 20:28:00Assume a generous bank,
25/153 47.8-49.48 de 他给你年利率是百分之百。08-30 20:27:59-08-30 20:28:53He gave you an annual interest rate of 100%.
26/153 49.72-51.7 jd 如果你存入一块钱的本金存满一年,08-30 20:28:00-08-30 20:28:02If you deposit a principal of one dollar, and leave it for one year,
27/153 51.94-53.08 n 如果你一年结算一次,08-30 20:28:01-08-30 20:28:03If you settle once a year,
28/153 53.26-54.7 n 一年后你就能拿到两块钱,08-30 20:28:01-08-30 20:28:04One year later, you will be able to earn two dollars.
29/153 55.12-56.56 aaa 这个时候你就开始动脑筋了。08-30 20:28:02-08-30 20:28:04Now it's time to start thinking.
30/153 56.74-58.36 hp 如果我让他半年结一次呢,08-30 20:28:03-08-30 20:28:06If I could make him have a meeting every six months,
31/153 58.48-60.11 jd 半年的利率就是百分之五十半,08-30 20:28:03-08-30 20:28:05The interest rate is 50% per half year.
32/153 60.17-61.61 n 年底连本带利一块五,08-30 20:28:04-08-30 20:28:07End of the year, with interest, 1.5 million
33/153 61.91-63.71 aaa 下半年把这一块五继续存进去,08-30 20:28:05-08-30 20:28:08In the second half of the year, I will continue to store this area.
34/153 63.95-64.37 n 利滚利,08-30 20:28:06-08-30 20:28:07Interest accumulates,
35/153 64.61-66.41 jd 一年后就是二点二五元,08-30 20:28:06-08-30 20:28:09One year later, it will be 2.25 yuan.
36/153 66.68-67.34 jd 多赚了两毛五。08-30 20:33:09-08-30 20:33:11Earned an extra 5 cents.
37/153 67.75-70.3 hp 那如果是按月结算月月利滚利呢,08-30 20:28:08-08-30 20:28:11If the interest is calculated monthly and compounded each month,
38/153 70.42-72.58 n 一年后你就能拿到二点六一三。08-30 20:28:08-08-30 20:28:12In one year, you will be able to earn $2.613 per day.
39/153 73.49-74.03 n 看到这里,08-30 20:28:09-08-30 20:28:10Seeing this,
40/153 74.15-75.83 de 你的胃口是不是应该被吊起来了?08-30 20:28:10-08-30 20:28:32Is your appetite getting better?
41/153 75.95-77.45 jd 如果我让银行按秒计算,08-30 20:28:11-08-30 20:28:13If I let the bank calculate by the second,
42/153 77.63-80.919 n 甚至在每个瞬间都在进行无限连续的结算呢,08-30 20:28:12-08-30 20:28:15Even in each moment, it's performing an infinite series of calculations.
43/153 81.27-84.24 hp 那我岂不是能利滚利滚出无穷的财富?08-30 20:28:13-08-30 20:28:17Then wouldn't I be able to generate infinite wealth through a cycle of gains?
44/153 84.54-84.96 n 很遗憾,08-30 20:28:13-08-30 20:28:14Unfortunately,
45/153 85.25-87.41 aaa 宇宙的数学法则在这里就画了一条死线,08-30 20:28:14-08-30 20:28:16The mathematical laws of the universe have drawn a dead line here.
46/153 87.72-89.1 jd 不管你结算的有多么的频繁,08-30 20:28:15-08-30 20:28:16No matter how frequently you settle,
47/153 89.28-91.5 n 你最终能拿到的钱也无法突破一个极限。08-30 20:28:15-08-30 20:28:19The amount of money you can ultimately obtain is also limited.
48/153 91.81-93.84 n 这个极限大约就是二点七八。08-30 20:28:16-08-30 20:28:19The limit is approximately 2.78.
49/153 94.14-94.38 jd 没错,08-30 20:28:17-08-30 20:28:18Right,
50/153 94.62-95.22 aaa 这就是一、08-30 20:28:18-08-30 20:28:18This is one,
51/153 95.89-99.01 hp 它不是哪位数学家在书桌前凭空捏造出来的数字,08-30 20:28:18-08-30 20:28:23It's not a number conjured up by some mathematician sitting at his desk,
52/153 99.19-101.23 jd 而是只要你研究连续增长,08-30 20:28:19-08-30 20:28:21Instead, as long as you study continuous growth,
53/153 101.41-102.67 xss 你一定会碰到的一堵墙。08-30 20:28:20-08-30 20:29:50You will encounter a wall.
54/153 102.85-104.53 aaa 但这里只是 e最基础的能力,08-30 20:28:20-08-30 20:28:22But here are only the most basic abilities,
55/153 104.65-109.21 n 它最神奇的地方在于微积分里面微积分的核心是研究变化的速度函数。08-30 20:28:21-08-30 20:28:30What's most amazing about it is that in calculus, the core of calculus is to study functions whose rate of change is a function.
56/153 109.33-114.55 n f x 等于 a 的 x 方求导之后会得到 f 撇 x 等于 a 的 x 方乘以某个常数,08-30 20:28:22-08-30 20:28:29f x equals a times the derivative of x squared, which is f prime x.
57/153 114.97-116.23 jd 这个常数取决于底数。08-30 20:28:23-08-30 20:28:24This constant depends on the base.
58/153 116.29-117.85 aaa a 如果底数等于二常数,08-30 20:28:23-08-30 20:28:25If the base is equal to a constant of 2,
59/153 118.03-119.29 hp 约等于零点六九三。08-30 20:28:24-08-30 20:28:27Approximately 0.693.
60/153 119.41-121.99 jd 如果底数等于十常数约等于二点三零二,08-30 20:28:25-08-30 20:28:27If the base is equal to the constant approximately 2.302,
61/153 122.26-125.08 aaa 但如果 a 等于二点七一八二八时,08-30 20:28:26-08-30 20:28:28But if a is equal to 2.7828,
62/153 125.56-126.76 hp 常数恰好等于一,08-30 20:28:28-08-30 20:28:31The constant is exactly equal to one.
63/153 127.0-129.22 jd 它的增长速度会恰好完美的,08-30 20:28:28-08-30 20:28:30Its growth rate will be just right,
64/153 129.28-129.82 aaa 等于它自己。08-30 20:28:29-08-30 20:28:30Equals itself.
65/153 130.15-131.29 n 这就好比你开着一辆车,08-30 20:28:30-08-30 20:28:32It's like you are driving a car,
66/153 131.47-135.19 jd 它的时速表上的数字随时随地都和它已经行驶的距离一模一样。08-30 20:28:30-08-30 20:28:34The speedometer always shows the same number as the distance it has traveled, no matter where you are.
67/153 135.53-137.03 aaa 这种极致的干净和优雅,08-30 20:28:31-08-30 20:28:32This extreme cleanliness and elegance,
68/153 137.21-138.41 n 在整个数据的宇宙里面,08-30 20:28:32-08-30 20:28:33In the vast universe of data,
69/153 138.47-140.09 hp 只有一这一个数字能做到。08-30 20:28:33-08-30 20:28:36Only one number can do this.
70/153 140.52-142.38 bg 这到底是人类发明的还是发现的?08-30 20:28:33-08-30 20:29:13Is this something that humans invented or discovered?
71/153 142.499-142.86 n 到了这里,08-30 20:28:34-08-30 20:28:37Here,
72/153 142.92-144.3 aaa 你应该隐约感受到了答案。08-30 20:28:35-08-30 20:28:36You should have a vague sense of the answer.
73/153 144.48-147.48 de 乙确实是在人类的宇宙规律中发现的,08-30 20:28:36-08-30 20:29:10It was indeed discovered in the human universe.
74/153 147.66-148.679 n 而不是发明的。08-30 20:28:36-08-30 20:28:38Instead of inventing.
75/153 149.14-150.88 jd 人类发明的部分只是一些皮毛。08-30 20:28:37-08-30 20:28:39Humans have only invented a small part of what they have.
76/153 151.059-153.82 hp 比如说把它写成十进制的二点七八二八,08-30 20:28:38-08-30 20:28:42For example, write it as 2.7828
77/153 154.06-155.74 aaa 或者用字母 e 来代表它,08-30 20:28:38-08-30 20:28:40Or represent it with the letter e.
78/153 155.92-157.0 n 这只是我们的命名习惯。08-30 20:28:39-08-30 20:28:41This is just our naming convention.
79/153 157.33-160.93 n 但这个数字本身所代表的规律却是绝对客观存在的。08-30 20:28:40-08-30 20:28:42However, the pattern represented by this number is absolutely objective.
80/153 161.17-163.09 jd 即便在几亿光年外的外星文明里面,08-30 20:28:41-08-30 20:28:43Even among extraterrestrial civilizations located several billion light-years away,
81/153 163.21-164.35 aaa 如果他研究复利、08-30 20:28:41-08-30 20:28:42If he studies compounding,
82/153 164.59-165.25 n 研究微积分,08-30 20:28:42-08-30 20:28:43Study calculus,
83/153 165.43-167.53 hp 不管他们用什么样的静制什么样的符号,08-30 20:28:43-08-30 20:28:47No matter what symbols they use, whether custom-made or not.
84/153 167.71-169.39 n 他们一定会算出同样一个常数,08-30 20:28:43-08-30 20:28:45They will definitely arrive at the same constant.
85/153 169.63-170.59 aaa 不可能有第二种结果。08-30 20:28:44-08-30 20:28:45There is no other outcome.
86/153 170.95-171.79 jd 在客观规律面前,08-30 20:28:45-08-30 20:28:46In the face of objective laws,
87/153 172.03-174.61 n 全宇宙的智慧生命都会收敛到同一个智。08-30 20:28:45-08-30 20:28:48All intelligent life in the universe will converge to a single intelligence.
88/153 174.85-175.93 de 虽然意识被发现的,08-30 20:33:47-08-30 20:34:06Although consciousness has been discovered,
89/153 176.05-178.51 n 但它发现的大前提却是由人类发明的。08-30 20:28:47-08-30 20:28:49However, the fundamental premise it discovered was invented by humans.
90/153 178.63-179.29 aaa 为什么这么说呢?08-30 20:28:48-08-30 20:28:49Why is that so?
91/153 179.41-181.93 jd 因为数字并不是像物理那样研究眼前的实体,08-30 20:28:48-08-30 20:28:51Because numbers are not like physical objects, which are studied in terms of their immediate existence.
92/153 182.31-184.95 hp 它是建立在一套由人类选定的公里之上的。08-30 20:28:49-08-30 20:28:53It is built on a set of human-selected kilometers.
93/153 185.28-186.6 n 最经典的例子就是几何学。08-30 20:28:50-08-30 20:28:51The most classic example is geometry.
94/153 186.84-187.62 aaa 两千多年以来,08-30 20:28:50-08-30 20:28:52For over two thousand years,
95/153 187.74-190.88 n 大家都觉得欧基里德的平行公理过直线外一点。08-30 20:28:51-08-30 20:28:54Everyone thinks that Euclid's parallel postulate goes beyond a line.
96/153 191.18-192.44 jd 有且只有一条平行线,08-30 20:28:52-08-30 20:28:53There is only one parallel line.
97/153 192.56-193.22 n 是绝对的正理。08-30 20:28:52-08-30 20:28:54It is absolutely right.
98/153 193.4-194.6 aaa 但是后来数学家们想,08-30 20:28:53-08-30 20:28:54However, mathematicians later thought that...
99/153 194.87-195.83 hp 如果换了这个规则,08-30 20:28:54-08-30 20:28:57If we change this rule,
100/153 196.13-197.03 de 规定过一点,08-30 20:28:55-08-30 20:29:10Regulations have been made.
101/153 197.15-199.55 n 有无数条平行线或者一条平行线都没有,08-30 20:28:56-08-30 20:28:59There are countless parallel lines or no parallel lines.
102/153 199.67-199.97 n 行不行?08-30 20:28:57-08-30 20:28:59Is it okay? / Is this alright?
103/153 200.21-203.51 aaa 结果他们真的创造出了截然不同的非 o几何。08-30 20:28:57-08-30 20:29:00As a result, they truly created a completely different non-Euclidean geometry.
104/153 204.02-205.46 jd 这不仅逻辑完全自洽,08-30 20:28:58-08-30 20:29:00This is not only logically consistent,
105/153 205.64-209.24 hp 而且爱因斯坦后来也发现我们真实的宇宙时空在大尺度上,08-30 20:28:59-08-30 20:29:04Furthermore, Einstein later discovered that our real universe is on a large scale,
106/153 209.42-211.94 n 其实就是被引力弯曲的非欧几何。08-30 20:29:00-08-30 20:29:03It's actually a non-Euclidean geometry that is curved by gravity.
107/153 212.059-214.34 n 这就说明数学不是在描述唯一的真实,08-30 20:29:00-08-30 20:29:03This shows that mathematics is not describing a unique truth,
108/153 214.52-216.5 jd 而是在玩一个如果那么的游戏,08-30 20:29:01-08-30 20:29:03And then, in a game of "if so,"
109/153 216.98-217.76 aaa 这就像在下棋。08-30 20:29:02-08-30 20:29:03It's like playing chess.
110/153 217.94-219.56 jd 围棋象棋的规则是人类发明的,08-30 20:29:04-08-30 20:29:05The rules of chess and Go are invented by humans.
111/153 219.74-221.24 aaa 但是一旦规则定下来之后,08-30 20:29:04-08-30 20:29:06However, once the rules are established,
112/153 221.48-223.88 n 在这个残局的红方有没有必胜策略,08-30 20:29:05-08-30 20:29:08Does the red side have a winning strategy in this endgame?
113/153 224.22-227.19 n 那就是一个绝对客观等着被发现的事实了。08-30 20:29:06-08-30 20:29:09That's an absolutely objective fact waiting to be discovered.
114/153 227.84-228.2 hp 同样的,08-30 20:29:06-08-30 20:29:08Similarly,
115/153 228.32-229.64 jd 我们人类选择了经典的逻辑,08-30 20:29:07-08-30 20:29:09We humans have chosen the classic logic.
116/153 229.88-230.78 aaa 选择了集何卵。08-30 20:29:08-08-30 20:29:09What egg was chosen.
117/153 230.9-231.62 hp 在这个规则之下,08-30 20:29:09-08-30 20:29:11Under this rule,
118/153 231.94-233.26 n 我们盖起了现代数学的大厦,08-30 20:29:10-08-30 20:29:12We have built the modern edifice of mathematics.
119/153 233.5-235.18 n 而 e 等于二点七八,08-30 20:29:10-08-30 20:29:13And e is equal to 2.78,
120/153 235.36-238.78 aaa 就是在这个地基上被规则锁死的不可改动的客观真理。08-30 20:29:11-08-30 20:29:14It is on this foundation that objective truths, immutable and locked by rules, are established.
121/153 239.13-239.85 jd 更震撼的是,08-30 20:29:12-08-30 20:29:13More shocking is,
122/153 240.03-241.17 de 即便是这栋大厦,08-30 20:29:12-08-30 20:29:32Even this building,
123/153 241.35-242.25 de 也不是一成不变的。08-30 20:29:13-08-30 20:29:35It's not static.
124/153 242.54-243.14 hp 一九三一年,08-30 20:29:14-08-30 20:29:161931,
125/153 243.2-245.54 n 伟大的数学家歌德尔证明了不完备定律,08-30 20:29:14-08-30 20:29:17The great mathematician Gödel proved the incompleteness theorems.
126/153 245.81-246.59 jd 任何足够强、08-30 20:29:15-08-30 20:29:16Any sufficiently strong,
127/153 246.77-251.87 n 无矛盾的数学规则系统里面都一定存在一些既无法证明也无法证伪的命题。08-30 20:29:16-08-30 20:29:20In a consistent mathematical system, there must be some statements that are neither provable nor refutable.
128/153 252.47-252.95 bg 也就是说,08-30 20:29:16-08-30 20:29:37That is to say,
129/153 253.25-254.45 aaa 哪怕游戏规则定好了,08-30 20:29:17-08-30 20:29:19Even if the rules of the game are set,
130/153 254.51-256.07 jd 有些问题也永远没有标准答案。08-30 20:29:18-08-30 20:29:19Some questions also have no standard answers.
131/153 256.19-258.84 hp 这时候数学家可以选择加一条规则规定,08-30 20:29:18-08-30 20:29:23At this time, mathematicians can choose to add a rule that:
132/153 259.02-259.44 n 它是对的,08-30 20:29:19-08-30 20:29:20It's right,
133/153 259.56-261.12 aaa 也可以加一条规则规定。08-30 20:34:21-08-30 20:34:22You can also add a rule to specify.
134/153 261.3-264.78 aaa 它是错的这就意味着数学不是一栋单一的大楼,08-30 20:29:20-08-30 20:29:23It is wrong to say that, because it means mathematics is not a single building.
135/153 264.9-266.88 jd 而是一棵可以无限分叉的树。08-30 20:29:21-08-30 20:29:23It is a tree that can branch infinitely.
136/153 267.22-269.77 n 你往左边选汇入一个新的数学宇宙,08-30 20:29:22-08-30 20:29:25You choose to enter a new mathematical universe on the left,
137/153 269.89-272.66 n 你往右边选又会进入另外一个自洽的世界。08-30 20:29:22-08-30 20:29:26If you choose to go right, you will enter another self-consistent world.
138/153 273.05-273.65 hp 只要你愿意,08-30 20:29:23-08-30 20:29:26As long as you want,
139/153 273.89-276.9 jd 理论上还有无数多个数学宇宙在等着我们去构建。08-30 20:29:24-08-30 20:29:26In theory, there are countless mathematical universes waiting for us to construct.
140/153 277.52-278.18 aaa 绕了这一大圈,08-30 20:29:25-08-30 20:29:26After going around in circles,
141/153 278.36-280.7 n 我们再来看 e为什么我们今天如此的重视义,08-30 20:29:26-08-30 20:29:28Let's take a look at why we are so important today.
142/153 280.82-282.14 aaa 甚至还专门给他起了一个名字?08-30 20:29:26-08-30 20:29:28Did they even give him a special name?
143/153 282.32-286.09 hp 是因为在我们人类目前已经居住的这颗数学之树的主干上,08-30 20:29:27-08-30 20:29:31Because on the mathematical tree that we currently live in,
144/153 286.49-289.85 n 在我们研究的连续增长微积分和现实物理的这个分支里面,08-30 20:29:28-08-30 20:29:31In the continuous growth calculus and this branch of real physics that we are studying,
145/153 290.29-291.43 jd e 是一颗最璀璨、08-30 20:29:28-08-30 20:29:30e is the most brilliant,
146/153 291.61-292.81 aaa 最无法绕过去的明珠。08-30 20:29:29-08-30 20:29:30The most unmissable Pearl.
147/153 293.05-294.07 n 我们选择了经典逻辑,08-30 20:29:30-08-30 20:29:31We chose classical logic.
148/153 294.19-294.85 jd 选择了微积分,08-30 20:29:30-08-30 20:29:32I chose calculus.
149/153 295.11-296.85 aaa 选择了研究连续变化的这个方向。08-30 20:29:31-08-30 20:29:33I chose this direction of research, which involves studying continuous change.
150/153 297.23-298.25 hp 一旦做出这些选择,08-30 20:29:32-08-30 20:29:34Once these choices are made,
151/153 298.61-301.37 n e 那就在路口静静的等着我们不可能是别的值。08-30 20:29:32-08-30 20:29:36Then we just wait at the intersection, there's no other option.
152/153 301.55-302.99 n 它不是我们凭空发明的工具,08-30 20:29:33-08-30 20:29:36It is not a tool we invented out of thin air,
153/153 303.17-306.83 jd 它是我们在这个奇妙的数学宇宙里面收到的最美妙的礼物。08-30 20:29:34-08-30 20:29:36It is the most wonderful gift we have received in this wonderful mathematical universe.