People enter the market for one thing and one thing only "TO MAKE MONEY"
Some on here keep saying I am a flipper?
Well, thats because my plan is to make money and being stubborn when the market goes against you does not make you money, it only makes you lose money. The market sentiment can change on a dime based on new data and if you don't want to change with the data then you will be hit by a freight train of sellers. "I have been under that freight train in the past and did not like that experience"
Even when your theory is correct on a stock or the market in general for the longterm, Its the short-term downside that can wipe you out before you ever realise the longterm prospects that may be had.
Therefore just like the weather changes from sunny to cloudy to rainy so does the stock market.
So if your stubborn and want a tan on a cloudy day, you still can get it but eventually it turns into a rainy week and you will get left in the cold all by yourself because everyone else has gone into hiding just like in a bear market people go to cash or start shorting heavily.