Well, bitcoin IS in a bubble and that's OK. It might as well reach to 20k or 100k before the bubble bursts but there's no denying it, cryptocurrency market is in a bubble.

People who get angry when you point out the bubble are thinking that we just don't like cryptocurrencies. No, the technology will stay - even bitcoin will stay and continue in the future but its CURRENT PRICE doesn't match its use value. Too many uncertainties - upcoming regulations, competitor cryptos, hard forks, ethically controversial practices - they all are potential needles that might burst the bubble at some point. After the burst, the tech will build up again with more use value and it'll still become successful.