Take out the largest loan I can today, bring that money back to 2014 when bitcoin crashed to 50 bucks each, sell in 2017 when it was around 19k, buy in mid 2019 when it was 10k, hold until it peaked in 2021 and cash out. If you started with 10k and did that, you could be worth over 26 million dollars today. You could be worth even more than that if you managed to leverage more loans and didnt screw up the timeline too much.