That's not how they, or anyone else, uses it on code though - that's on their notes. This is just a feature, it's up to you how you use it.

The metaphorical infinite monkeys on typewriters.

a few years ago our company used Screenhero which allowed editing with multiple cursors while screensharing.

The experience was actually quite nice for two-three people but we always had the "ok let me type now" flow. Multiple changes happening at once sounds hyper distracting.

The concept of sharing and taking turns has been lost on the software engineer here....

my understanding is that this is the dynamic in modern college classrooms. everyone opens a big shared google doc for notes and they all collaboratively edit a set of notes in real-time.

or at least that's what i've heard, no idea if they actually do it.

it is nice to see a crdt backed editor tool for markdown and code though. gdocs markdown support has been lacking for years.

Yeah, people are different, but a lot of this difference results from various constraints, such as cultural practices around collaboration or technological options. Many of these limitations probably shouldn't be locked in by our tools or norms.

When learning a new way of thinking or moving (i.e. martial arts) people often really benefit from high-bandwidth, low-latency, shared-viewport-onto-reality interactions. Watching someone's cursor move while they talk is one way to get a window into their problem-solving toolkit.