The rule of 72 says at 10% per year (historical returns in the stock market for the past 100 years) means you are doubling the value of the stock market every 7.2 years. Things like economies can't grow like that and if you are questioning why it's because you and I grew up in this era where they could for a brief blinking in time. Human reproduction is slowing, we've harvested all the low hanging fruit, "free" land is all taken. I feel like we are probably at the part of the 100m dash curve talked about here.
https://condellpark.com/kd/sprintlogistic.htm
At our current rate, the record of 9.48s will be reached in 500 years if you plot it. But I don't think people are going to maintain interest for 500 years to get there from 9.58 seconds.