According to
@jack the biggest threat to Bitcoin is becoming irrelevant and not being used as a medium of exchange.
The top of the Bitcoin White Paper reads "PEER-TO-PEER ELECTRONIC CASH" and some people are worried that it will not fulfill it's original vision.
Bitcoin on layer one could never be used as a medium of exchange. It's simply too slow, too expensive, and block space is scarce.
However, with new tools on layer two (lightning, liquid, ecash), it is definitely capable of becoming a medium of exchange as well.
We took a deep dive into this topic to break down whether or not this is relevant and what we can do to change the direction.