Self-Adjusting Furniture

Pre-computer age middlingware never fits extreme people well. If you're a child, or small, your feet never touch the ground when you sit in chairs; if you're lanky your knees keep bumping your chin.

So a pre-computer solution to this would be the adjustable chair. The occupant can alter dimensions such as length, making sitting rooms wonderfully scruffy and uneven. As long as everyone knows their place, harmony breaks out among all users of such a lounge, not overly concerned with impressing imaginary unpleasant strangers (they never do appear) with how smart and sterile the Space looks.

But why stop there? We're all going to be RFID tagged, barcoded, and biometrically scanned one day, anyway, so why not benefit from this? Simply motorise the adjustment procedure, under the direction of a microcontroller, and allow it to interrogate your collar, and attempt to identify you.

Now you can pinch Granny's spot, and the chair will grow to accommodate your gangly appendages. And then Granny can climb all the way up onto your normal chair, and it will gently place her feet on the ground.

I think there are car seats that do this already, but the lounge suites I've seen offer mere style, and nothing else.