How many of the other data structure choices that were made in the early 1970s didn't need to be changed for 40 years or so?
A choice that gets you 40 years down the road, instead of millions of years down the road is a good choice, when you don't even know if you're going to have roads in 40 years.
A choice that gets you 40 years down the road, instead of millions of years down the road is a good choice, when you don't even know if you're going to have roads in 40 years.