Most work, especially software development requires frequent communication. Being able to quickly bounce ideas off people and verify your plans before committing to them is so valuable. I can't count how many times I have been right in the middle of something, had to make a questionable choice, spoken to a coworker just to verify the idea, and they tell me something that completely changes the outcome. Being able to get this done within the hour vs getting it right at the end in review is so valuable.