Trade cautiously. Implement risk assessment and capital management. Trade in the direction of the market. Use common sense and don't become too emotionally invested if the price turns against you.
No, this is not the end for Bitcoin . But, this idea isn't outside of the realm of possibilities. Don't be delusional. Don't throw out rationality. Blockchain is revolutionary but that doesn't imply that Bitcoin won't tank in value since it grew too fast.
Ignore anyone who says, "that can't happen". All markets crash at some point and Bitcoin is no exception since human behavior is the same.
Again, don't get it twisted, this is a possible scenario that you should be aware of in case things go south. I'm not being dogmatic.
This post isn't investment advice nor is it a scare tactic. It should only be used for risk assessment. Trade with wisdom.