If I had to use a thumb mouse to perform job functions, I'd have to find a new career. I am unable to use this input device long term. Which brings up the question of input devices.
From punch-cards, to keyboards, to mouse, to smart phone swiping, to smart watches, to voice recognition using AI Natural Language Processing.
We went from dumb terminals, to PC, to laptops, to Smart Devices and Pads, to smart watches.
Computers are no longer the "main" devices to connect to the web and interact.
What if we took the dumb terminal approach, had the PC hosted virtually in the Cloud, connect via any device. That would reduce the costs for PC, Laptop, etc. Access your computer from any device, anywhere, any time.
What if we had keyboards that were not physical, as in holograms. Simply start up your hologram keyboard, connect through your internet connection via wireless network or smart phone, connect to your virtual hard drive in the cloud, that contains all your programs.
Seems like one plausible next step in the evolution of PC on every desktop.
Likewise, what if the hologram keyboard could connect to IoT devices out in the wild.
Would surely open up new opportunities, and markets.