I would guess that the destination wasn't important, the journey was.

But I must agree with others that the author at least seems to give the appearance that he was rather ignorant with different map projections. But if you want an Africa-sized Greenland and a huge huge Kamchatka, why not.

Nah, a display at that size with comparable resolution will cost a fortune (if it actually is available for mortals). Also power consumption would be quite a sum.

Or a decent high res LED projector, would have cost less than the foam board he stuck the map to and he could have it done in a day.

Given his objectives specifically included high resolution enough to see details on the map up close, even a 4K projector would have fallen far short of this.

Yes, for 3mx2m at 300dpi one would need something like 35k projector

Projectors aren't limited to displaying static images, but I guess the format is a matter of taste.

He raised the "you cant lean without having your shadow masking everything" problem