First off, the twitter link does not work. However, you should really think about this yourself.

Yes, bitcoin may be in a bubble. Who knows? However, if you have a look at the idea behind bitcoin and its core values, it will seem obvious that even if it does crash, its not going to be the end of bitcoin forever. It will take time and a lot of effort to destroy bitcoin.

However, the lightning network needs to be implemented asap because what is happening right now is horrendous.