6) and yes a future HF to increase the blocksize beyond the current 4MB of weight
From a technical/scalability perspective, I am more open to this than I was years ago. But when I consider the social/political issues around it, I'm skeptical a non-emergency hard fork would ever be easy to pull off at this point. You think broad consensus is possible? What kind of timeline and activation process are we talking about, and how would we gauge the risks of a network split?