[coldtea]

>We could acclimate to all of this, sure. But we'd still have timezones. It wouldn't be immediately obvious to the Londoner that 11:00 is a terrible Skype time for her California colleagues (3am)

Yeah, I addressed that though. We'd still need to know the offsets sunrise-wise or cultural-wise (e.g. 10pm is late to call in some countries, absolutely normal in others).

>So I don't see the gain here.

It's trading local time reference points (like the sun etc), for global coordination (in an increasingly interconnected and real-time planet) -- so everybody immediately knows what time X is everywhere. It's not meant to eliminate the fact that sunrise times etc are different, just to keep a stable frame of reference without timezones for time (one would still need the offsets to know whether it's night or day in place Y at time X).

>Dealing with time differences is a fundamental aspect of living on a ball Earth.

Doesn't mean there's one and only one way to deal with those though. Or that people don't spend a lot of time in the real-time, non-spherical, always-on, web too nowadays.