So with normal use it should be fine for a few decades.
Considering that “normal use” can be so very different among different people/applications/climates, I don’t put a lot of stock in assessments like that, but it is at least one prediction to compare against when we see what happens in practice. Time will tell.
It’s also ironic in light of his history of loudly bashing linux and linux game development.
I can’t think of anything good to say about Tim Sweeney.