system
A chat on subreddit /r/wallstreetbets
human
We've been here before. The Fed lowers rates, the market forms a bubble, the Fed struggles with how to engineer a 'soft landing.' Then the market crashes.  
  
 Bubble thinking never changes. Human nature never changes.  
  
 'Stocks have reached a permanently high plateau' - economist Irving Fisher, summer 1929. Sounds a lot like you.

gpt
Look at the inflation/deflation rates over the past century. The Fed learns lessons and improves its craft. That's not to say everything's different this time, just that it's equally stupid to assume everything is the same.