Those are both great questions, and there is plenty of other terrific speculation in this thread, but one thing I haven't seen yet is the word "collapse". In 1

Those are both great questions, and there is plenty of other terrific speculation in this thread, but one thing I haven't seen yet is the word "collapse". In 100 years, it's possible the only computing being done will be of the biological sort, by far smaller and more resilient life forms than humanity. Even if we survive, the seemingly inexorable progression of technology may take a back seat to survival, and we could easily be struggling just to maintain functionality of devices we no longer have the ability to manufacture. I suppose I should temper the doom & gloom a bit by mentioning that I think we still have several chances to squeak out a pathway to avoid massive and violent die-offs, but that window is certainly narrowing and we aren't doing nearly enough. Hundreds of millions of climate refugees (or more) are going to disrupt pretty much everything if we don't start planning what to do with them now.