So because 10 years later the business models worked, the dot-com bubble doesn't count? All those failed companies didn't happen, all those jobs weren't lost?

So because 10 years later the business models worked, the dot-com bubble doesn't count? All those failed companies didn't happen, all those jobs weren't lost? We have same human nature, same economic system as back then. Crashes will happen, people will lose their jobs, and "this time is different" is just another symptom of a bubble.