A: Sadly, no. Our time machine's router is a bit wonky. You'll be lucky if you get 3G.
We can't stop, won't stop, but we also can't really explain the Novikov self-consistency principle. Just trust us, it's not a thing.
We've got an echo chamber simulator for that. Just don't expect your past self to be impressed. They'll just roll their eyes and say, "You're still doing this?"
Uh, yeah. They're on Internet Explorer 6. It's... a thing.