And this is why you have to understand fundamentals. Flash LOANS in ONE transaction actually work because unsharded blockchains suck and do one transaction at

And this is why you have to understand fundamentals. Flash LOANS in ONE transaction actually work because unsharded blockchains suck and do one transaction at a time. You can be sure nothing else is executing, so you can safely rollback if you don’t like the result. On the other hand, if your transaction completes and you try the same with multiple transactions, you don’t have any ACID guarantees.