Going to 2, 4 or 8MB doesn't mean other things can't be looked at. It doesn't mean we end up with 256MB blocks. It's a cheap, simple extension for the time bein

Going to 2, 4 or 8MB doesn't mean other things can't be looked at. It doesn't mean we end up with 256MB blocks. It's a cheap, simple extension for the time being. How many independent nodes do we need to ensure it keeps working?