Both extremes are good. I've used Pure-Data and Unreal as daily drive presentation tools for hundreds of lectures. The former is really live coding, which is a

Both extremes are good. I've used Pure-Data and Unreal as daily drive presentation tools for hundreds of lectures. The former is really live coding, which is a great way to teach and communicate. A complex presentation can be just like a bunch of boxes (subpatches) connected together to do stuff - and its easy to build almost like a "mind map" by connecting them. For Unreal, I found the best way to teach game/VR concepts was from within the world. It got tedious switching between PDF slides and the engine, so why not just build a slide presenter inside the bare constructor space. As for plain text... I love it for presentations. Emacs org-mode is perfect when you want to execute code via babel, and just see stuff in a simple, foldable list, then dive down into the content.