We all remember the busting of the internet bubble at the turn of the century?

Many charts looked like CSCO>>>
https://finance.yahoo.com/quote/CSCO/
Look at some comparable charts max now in assorted industries today>>>

https://finance.yahoo.com/quote/COST/

https://finance.yahoo.com/quote/WMT/

https://finance.yahoo.com/quote/AAPL/

https://finance.yahoo.com/quote/AMZN/

Yes, fallacy of small sampling, but surely, I can find more.

Food for fear?