Time machine Have you ever said words to the effect of If only I knew then what I know now? What would you say to the past you ff you could go back to the past? I want to go back to 20. Because a lot of growth occurs in our 20s. I will advise my 20-year old self, you should learn more finance knowledge and open mind to try something else do not just in the comfort zone. Which age do you want to go back, if you have an opportunity with a time machine? What would you want to speak to the past self?