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by kode-targz 38 days ago
An image-based execution model.

In Common Lisp, the compiled code and data are both saved as a memory snapshot, kind of like an OS image (think an ISO you can boot into). This means you can hot-swap the code part, while keeping the data and run-time configuration, on a running system.

A REPL is part of it, but it's not the whole picture.