It's not necessarily being immediate mode that is the problem. The bigger problem with most IM GUI's is they expect to repaint at 60 frames per second like a vi

It's not necessarily being immediate mode that is the problem. The bigger problem with most IM GUI's is they expect to repaint at 60 frames per second like a video game which is bad for mobile devices as it drains battery life. Non-game GUI's should only repaint when needed. Another problem is most IM GUI's lack accessibility and i18n support. Want emoji or right-to-left text? Too bad.