If you made a steady monthly investment into an index of NASDAQ stocks throughout the dotcom boom time and then just held them, you would have done reasonably well today.
So arguable there was no dotcom 'bubble' in the sense that the dotcom stocks weren't overvalued as a whole. (Not all individual stocks did well. But the future is always hard to predict. And stock prices are about expected values of future prices, actually realised futures can differ.)
The dotcom bust was real though: dotcom stocks were way too cheap after the so called 'bubble' burst, in the sense that buying an index of NASDAQ stocks then and holding them until today would have given you crazy outsized returns.
So arguable there was no dotcom 'bubble' in the sense that the dotcom stocks weren't overvalued as a whole. (Not all individual stocks did well. But the future is always hard to predict. And stock prices are about expected values of future prices, actually realised futures can differ.)
The dotcom bust was real though: dotcom stocks were way too cheap after the so called 'bubble' burst, in the sense that buying an index of NASDAQ stocks then and holding them until today would have given you crazy outsized returns.