1. Stock in good companies isn't cheap.
2. Tech will dominate our lives even more in the future, but the best companies in this space are often the ones you've never heard of.
3. Buying (and selling options) are a great way to boost your portfolio's growth. 
4. SPACs make for great long term investments if you believe in the management team leading the SPAC
 5. Don't underestimate the psychology's influence on the market (social contagion, fomo, referent power, charisma, terror management theory, etc.).