It's not quite the same (muscle memory retraining required) but I've changed the keyboard configuration on my Mac so that Caps Lock maps to Escape (I realised I

It's not quite the same (muscle memory retraining required) but I've changed the keyboard configuration on my Mac so that Caps Lock maps to Escape (I realised I never used the caps lock key when I was writing COBOL and I'd kept my pinky on the shift key most of the day - so the Caps Lock key on my Mac has always been bound to nothing until recently). It's not perfect but it does mean you get that nice tactile feedback that you'd get with the real escape key. I think it'd be interesting to see what vim would be like if there was touch bar support (hoping iTerm will do something here eventually) and I could have my most common commands be bound to a 'key'