In time, scrollbars helped with the problem, then mice with wheels solved it in one direction, and then trackpads in both. (Although even though my 2025 Windows laptop doesn’t have a Scroll Lock key, its onscreen keyboard does, and the key still works in Excel.)
They are almost the same: they share the same underlying array. You do get a copy of the little (ptr, len, capacity) struct which is what a slice is.
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