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A comment on Attacking the DeFi ecosystem with flash loans for fun and profit (2020). Parent comment

Re:Attacking the DeFi ecosystem with flash loans for fun and... by seibelj on Saturday January 16, 2021 @08:45PM (#25807295)
Even if there can be parallel computation a flash loan can still occur. The concept is borrowing a huge sum of money for a split second to take instant advantage of an opportunity. This can happen outside of a single threaded VM model.
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Re:Attacking the DeFi ecosystem with flash loans for fun and... by EGreg on Saturday January 16, 2021 @09:04PM (#25807381)
Well, yes but only if all the smart contracts that are being called are on the same shard. Ideally under Ethereum 2.0 these assumptions will disappear. In fact Ethereum 2.0 should be “fast enough” for most applications.
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