Where did you find a laptop with a fifteen foot screen?
The multiple folds of the screen and keyboard are what allow the flair's 15 foot footprint to be carried around in a phone's form factor.
I have one of the original 16 core versions of these. Come to find out, Apple has recently released 80 and 128 core versions of the flair, so I may need to upgrade next year for the additional horsepower to run data models.