The thing is, we're actually pretty crappy at knowing what we'll need 50 years from now, much less 500. Doesn't make sense to overbuild for an unknown future, when hundred years from now us will likely be able to do a far better job anyway.

That's to consider the commons solely materialist utility. The Romans built meaning through arts that still speaks to this day. Efficient construction becomes worthless over time.

Yes, you, too, can have two-thousand-year-old buildings if you're willing to make that longevity be the primary thing you pay for, assuming that your successors don't tear the thing down and replace it with something else, like happened to many Roman monuments.

In which case you spent a bunch more than you needed to on a building that didn't last any longer than it would have if you'd chosen a practical end date for it.

Efficiency is never worthless in a world where resources (if nothing else, labor) are not infinite.

The kind of efficiency we focus on seem to be plentiful. Labour is a good example, see unemployment rates and the number of bullshit jobs anyway.

What's covered in the article is also a great example of material resource that could be used, but short term profiting primes.