At the point your lecture crashed, it also did for me (I was following along closely). Why not re-edit this video to make sure your students don't crash their computers?
While we try to limit errors and crashes as much as possible, we also want to be transparent that errors and crashes happen to everyone, including us. So sometimes we let them stay in the training so you guys can see how to handle them.
Though if your entire computer crashes, that's a pretty intense error that I don't experience much.
Thanks for crashing my computer!
It's important to understand what actions will cause a digital art tool to become unresponsive and when.
For example: if we alter the Multires level while in Edit Mode, the computer will not become unresponsive until we switch to Object Mode. Knowing when a tool is unresponsive because it is working will prevent you from unnecessarily interrupting it early - believing it to have crashed; or causing it to crash by interfering with the computer while it works.
Furthermore, when I reopened Blender, UV image data was no longer linked to my mesh. I selected the Object in Object Mode and added image data in the UV Editor. The baker threw the error "you should have active texture to use multires baker."
I then realized that image data must be linked to an object's mesh data by selecting it in Edit Mode. This allows an object to have multiple UV maps.
Thus, this crash reinforced my knowledge quantifiably.
Will there ever be a reason to link an image data-block to an object directly? Or is this an interface quirk?
I apologize for my verbosity.