I feel like these are solvable problems. Even if SMS isn't the right solution, it's clearly already technically possible to send text between phones in an effic

I feel like these are solvable problems. Even if SMS isn't the right solution, it's clearly already technically possible to send text between phones in an efficient manner using the existing cell phone infrastructure. I could see some low-ranking Google engineer pushing out an update to the default chat app on my $50 Android that allows it to either use SMS or a Google-operated HTTP endpoint, without realizing that he accidentally caused tens of billions of dollars in chat app valuations to evaporate overnight, since the default app is now good enough for most people.