An explanation of how Quake, and other games like it, use BSP Trees to stop the player from walking through walls and falling through the ground.

I LOVE that Quake and Doom still have such active communities. This is an amazing achievement.

If I want to see my terminal I need to either make my browser or code window smaller. I could use cmd+tab or the mouse to switch to my terminal but these options are annoying. cmd+tab always seems to go to the wrong app, and mission control involves reaching for the mouse or track pad which is often a nuisance.