Also factor in the talk of neg interests rates and stocks still look very cheap. Especially stocks that have an up side and pay dividends.
Current S&P500 P/E is 24.
https://www.wsj.com/market-data/stocks/peyields
Historical median is around 15. We have also had 3 consecutive quarters of negative earnings growth.
https://insight.factset.com/sp-500-earnings-season-update-november-8-2019
All while the S&P sits at all time highs in a technically very overbought condition. So no, I'd say a lot of optimism is already priced in.