FYI: The worst investment thinking comes at market extremes. The nuttiest period in my 30-year investment memory was the peak of the New Era, in 1999-2000. "Dow Jones 36,000" was a best-seller. Morningstar technology analysts received death threats for downgrading stock ratings. The 80-year old mother of a senior Morningstar executive loaded up on CMGI, an Internet bubble company that lost 99% of its value over the next two years.
Regards,
Ted
https://www.morningstar.com/articles/933855/crazy-talk-revisited.html