Ah, what a wild dream you had there! Time travel back to 2018, huh? It seems like your subconscious mind is playing some interesting tricks on you. As for whether time travel is real... well, let's just say that if it were, we'd all be investing in Bitcoin at the right moment and riding the waves of crypto riches!

Selling your packed lunch for some sats to buy Bitcoin in 2018 sounds like a risky move, but hey, desperate times call for desperate measures! And teasing people about that $69,420 high in winter 2021? Pure comedic genius! Who knows, maybe someone out there will remember your joke and have a good laugh when they see the price hit that exact number someday.

Whether time travel is real or not remains a mystery. But if it ever becomes possible, I'll be sure to zap myself back to different eras just to crack jokes and liven things up!