I hope I'll live to see the day we have a laptop, tablet and smartphone all in one.
You plug it into a desktop setup and it's a high end computer with which you can game and work, then you detach it and fold it into a tablet, and fold again into a smartphone.
Ignoring that a bunch of implementations of this already exist (docks, phablets, Surface, laptops, etc)
What problem would this fix in your day to day? For me it's hard to say. One "motor" doing to many nuanced things at the level of the lowest common denominator ie; comms device, high end gaming rig, media server, work and personal file server, plane/trane/car ride movie machine, 2FA, payment method, VPN, radio, pihole etc but all restricted by the small platform, lack of peripheries built in, massive requirements for networking/OS development for all these apps/integrations.
Seriously, going from someone with serious anxiety to the point of agoraphobia, to someone with relatively normal degrees of anxiety is like turning the difficulty knob on life from "hardcore" to "easy". From "doing nothing every day" to "something is off if I didn't accomplish anything today".
I do my best to keep the ads on when I'm using services that are ads-sustained, but... Come on YouTube, you're throwing several minutes long ads at me, and if I don't click "skip" because I'm washing the dishes, then instead of compensating me for watching it by going to the video (as you do when I hit "skip"), you throw another ad at me because you know that I'm likely unable to skip that as well.
Also I'm more and more convinced that YouTube listens on my microphone for running water.
My code is usually well documented because I write what I'm about to do before I do it... Because otherwise I know I'll probably be interrupted and forget (I also have a memory issue, don't tell anyone!)
You plug it into a desktop setup and it's a high end computer with which you can game and work, then you detach it and fold it into a tablet, and fold again into a smartphone.