Need more evidence to tell if market has bottomed

Is now a good time to buy or goodbye?

I don't time the market, hence need not worry if the market has bottomed. I invest in the company not the share price.

I do DCA if I want to invest in a particular stock or ETF to avoid emotional trading (FOMO and panic sell).

I don't predict but when the FED continues to increase interest rate, it is difficult to tell if the worst is over.