Yea and I honestly don't like Ben Davidson's take in that interview. He's a real doomer without a blowoff. Look if something like cosmic rays, asteroid, zombies, solar flare .. whatever happens ... like you can't prepare for that.
If humanity survives, then the part that does will probably just forget, and 10,000 years later someone will find old hard drives under layers of thin black tar the ancients called "asphalt" and used as roads. The disks were thought to hold a information in a format long forgotten format .... 100 million years and the buildings, asphalt and all traces of our sentience disappears forever ...