Backtracking (i. e. reverse execution) helps the user of a debugger to naturally think backwards along the execution path of a program. and thinking backwards makes it easy to locate the origin of a bug. https://www.lightemupsequences.com/flash-pick-Tiki-Luau-Shaped-Thank-You-Cards-Tropical-Hawaiian-Summer-Party-Thank-You-Note-Cards-with-Envelopes-Set-of-12-top-super