In my experience the "ca you just..." solved a lot of problems cause very often developer (me included) start thinking about edge cases and uncommon scenarios b

In my experience the "ca you just..." solved a lot of problems cause very often developer (me included) start thinking about edge cases and uncommon scenarios before even solving the main path and sometimes a "can you just..." put the focus back on solving the common problem/path before thinking of that edge case that could be solved in a second iteration (divide and conquer). The other good aspect of the "can you just..." is that it force you to explain your motivation and the details that made you out rule the simple solution and that could help solving the problem. then, if your ego do not support a "can you just", it's your problem not the other guy as it's never meant to say I'm better then you but to engage the discussion and help solving an issue!!