My opinion is, bubbles burst when people panic and people panic due to lack of communication. In the past, you wouldn't see places like /r/antiwork or /r/wallstreetbets grab wallstreet's attention for example. The rich keep getting richer but they are also now better informed so that they know just how much carrot to hang on the stick for the poor. inflation is normal, hence so are bubbles. Bubbles bursting means failure of the system to sustain itself.