True credit card arbitrage, which is what helped me bootstrap, involves real accretion of money In my case, it was playing the us mint. They sell 250 $1 coins

True credit card arbitrage, which is what helped me bootstrap, involves real accretion of money In my case, it was playing the us mint. They sell 250 $1 coins for 250 with free shipping. Fidelity Amex card gives 2% cash back. So I would order tens of thousands of coins and use the coins to pay the credit card build. 1K roundtrip = $20, and it was pretty scalable. Nowadays there is a limit