So here, what we really want to understand is the probability of bitcoin reaching $500,000. The market cap will have to be $8 trillion dollar for bitcoin to hit that landmark. So do you think there is a little probability for that???

No it is not going to happen, there is nothing wrong with being bullish in your predictions about bitcoin but that to me is not being bullish but being delusional, I think there is a decent chance that bitcoin reaches 50k by the end of 2020 or at least it will recover the price we saw of 20k but to think it can reach 500k in just 3 years is something that seems impossible to me.