Are you annoyed that you need to wait almost 3 seconds for the stupid Apple Mail animation to complete when replying/forwarding a message? Thankfully you can turn off that behavior with a little command line:
defaults write com.apple.Mail DisableReplyAnimations -bool YES
Should you decide that you no longer need those 3 seconds back, just change YES to NO
defaults write com.apple.Mail DisableReplyAnimations -bool NO
Seth Vargo is an engineer at Google Cloud. Previously he worked at HashiCorp, Chef Software, CustomInk, and some Pittsburgh-based startups. He is the author of Learning Chef and is passionate about reducing inequality in technology. When he is not writing, working on open source, teaching, or speaking at conferences, Seth advises non-profits.