[bhaak]

The reason was not because of a repayment but because you wouldn't expect a respectable bank like CitiBank to do such a mistake.

> “To believe that Citibank, one of the most sophisticated financial institutions in the world, had made a mistake that had never happened before, to the tune of nearly $1 billion, would have been borderline irrational,” he wrote.

https://www.nytimes.com/2021/02/16/business/citibank-revlon-...

That's as close to "code is law" and other nonsense of the crypto libertarians as you can get.

[okasaki]

Not really. Right in the paragraph above that one:

> Recipients of cash wired in error are typically required to return it.