I made two comments in this thread. The one you replied to, and this one I'm using now to respond to you. Do you have me confused with someone else? But yeah,

I made two comments in this thread. The one you replied to, and this one I'm using now to respond to you. Do you have me confused with someone else? But yeah, I think "within our lifetime" is a critical qualifier, and most people who are not writing it down are implicitly assuming that the qualifier is obvious. I have very limited interest in technologies that will not exist until centuries after I'm born, other than as entertainment. Without that qualifier, almost any practical discussion about technology is moot. It's fun to talk about FTL or whatever, but we certainly should not be investing heavily into it... It might be possible, but most research on that direction would be wasteful.