The Importance of Diversification in Stocks

I'm curious from your perspective you see all the practices the businesses what what would you reflect as what people are saying right now is what's the uncertainty right now that you hear about. helped me when we had the crash of 2008 and my husband and I had our second house and watched the value tank and that helped me remain calm because I thought well we still have the physical house yeah we still can make the payment who caresYeah it doesn't matter we'll just wait just hold it wait Yeah but why don't people think that about stocks stocks go down like 15% and everyone's like this is never coming back it's over forever? You're like what dude your house went down like 30