We all know that bitcoin has a problem in scalability, I hope somepeople can solve this problem. I have a problem when bitcoin price reach $20000, its transaction fee is very expensive, I think this is the most important thing that bitcoin need to improve.
Yeah when it was $20k you need to pay the fees average for around $100 , it sucks. Subjective question indeed but I believe mostly agree that the scalability should be the priority to fixed. Merchants adoption should grow not stuck or even decrease due government ban . That's all.