Bitcoin is absolutely not a good currency but I think it's best we have. I mean world is not just economics. All the theories which you are saying once never existed and were created after scholars examined the world around them. So why is it not possible people could also start use Bitcoin and then scholars would create a theory which can prove that how bitcoin is good as a currency. Moreover considering that most of the central banks are the persons responsible for crash so I think independent economy is much better.