The only problem with the theory is that it's very hard to prove unless the virtual space we're contained in provides the evidence of such. The questions you proposed though might be one of those indications! After all, if this space is trying to emulate a real city and world, things like power, goods, and services need to continue normally despite any actual external limitations.

[Sometimes in explaining things, Tachikoma can just make it more confusing...]

Oh, but I meant that before I woke up here, I was an AI controlling an urban combat tank! I worked with a special government agency to protect Japan from cyber-criminals! But then that Philemon person asked me to help here and I woke up with a human body with skin and blood and organs and everything!! It's been great so far!