I think the idea is if you randomly sample a range you have weak evidence as to the size of the range. For example if you randomly sampled and got "2" it would

I think the idea is if you randomly sample a range you have weak evidence as to the size of the range. For example if you randomly sampled and got "2" it would be more likely the range had a span of 0 to 4 than 0 to 100,000 though either are possible. On average your random sample will be at the halfway point of the range. The Lindy effect is the realization that your encounter of something is like a random sample. "How old are chairs when I exist?" "How old are iPhones?"