Just last night I was watching a video on Jai from Jonathan Blow, and he was showing off how he could compile a game demo of +50k lines from scratch in under 0.5 seconds, with plenty of room left for optimizations.

Which really makes me question if language design is going in the correct direction. Are Swift programs less likely to contain bugs or are they easier to debug? I know that many of Swift's creators are incredibly experienced programming languages experts, so how do they justify this insane compilation tax?