Is this like the dot com bubble? My understanding is that the mindset of the time was a true mania - people were convinced it was the new normal and that businesses got insane valuations preproduct even. It seems like with a lot of these bubbles everyone is like “get in this stupidly inflated asset with money you can lose to try and make a quick buck” with retail investing at all time highs rather than some dramatic distortion in people’s perspectives. Even while assets are so inflated the investor sentiment still seems sober.