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by art-w 3987 days ago
Not exactly: you don't get the O(1) access to the two previous computations with loeb. It abstracts the collection used for memoization, but it doesn't provides "locality".

Here's a presentation that dives into loeb and expands it to a comonadic fixpoint that lets you do the fibs example correctly: https://www.youtube.com/watch?v=F7F-BzOB670