Buffet is right most of the time but not always. He previously sold off Apple and missed out a huge amount of profit when it rallied. I think retail investors should have a healthy amount of portfolio in cash to deploy. Treasuries require a holding period that can cause one to miss out when market quickly rebounds. We can’t always buy at the bottom or sell at the top but should be nimble enough to at least profit from the the rebounds. In recent years, market dips have been short lived as the government manipulates it by pumping cash during the covid years and rate cuts/increase with trump comments that have swung the market quickly. I think value investing is still important as that will likely give the best bang for buck with higher chances of the stock prices taking off when market conditions are ripe. Having said that, momentum can also help traders to lock in profits when stocks hike with market sentiment. AI would complement if one knows how to use both strategies to trade/invest