A circle (i.e. domed building) or a RING? There's a huge difference. And there's something called the outdoors that isn't desirable in a building plan to get around, particularly on bad weather days.
The shortest distance between two points in space (ignoring the curvature of space since it's pretty much irrelevant to the discussion) is a straight line even if that line is inside a circle. But being forced to walk in a large circle around the perimeter of a large building to avoid rain, etc. is waste of time when you could fit the same amount of space contained within the RING (usable portion of the building) in a MUCH MUCH smaller space, particularly if you used multiple floors (whether a dome or even a cube). You can have any number of walkways inside a building to make it simple to get around rooms, etc. and lifts (aka elevators) make it simple to move up and down.
If what you said were true, ALL buildings in the world would be rings. They're not rings for a reason. They WASTE SPACE.
Ever hear of the outdoors? There something outside called WEATHER. What you and some others are suggesting is that people should walk some huge distance out in the rain/wind/snow/whatever around a bunch of freaking trees and uneven ground to shortcut rather than building a nice compact building that is all indoors. Yeah. That's WAY better. NOT.
If this were a dome, I might be more agreeable, but it's a RING and that means there is no indoor way to take the shortest path. Furthermore, a properly designed circular building would have the hub at the center. Here, we have TREES at the center and NOTHING in the way the offices, etc. in that entire inner circle diameter (i.e. wasted space). Thus, you are forced to walk the LONG way around the perimeter to get anywhere indoors. That is STUPID no matter how you look at it.
As for those that love trees, so what? I hate them around my house. They cause trouble (leaves falling everywhere; roots getting into the foundation and around drains and creating uneven ground, etc.) You could have an atrium or even a greenhouse in the center of the building for a garden, etc. There is no need to create a $5 BILLION building where a $500 million building would do better.
Ah someone who gets it.
Apple is also very secretive and the LAST thing they want is unauthorized "collaborations" between employees at different levels, etc. just because they "bump into each other". Most businesses also have meetings, etc. and something called lunch and that often involves travel. A centralized cafeteria would make sense as would a set of meeting rooms around that ares towards the center of the wheel. But here, they put TREES there instead.... (face palm)
So they're all going to go outside into the wilderness and smoke weed or something? I see no meeting areas outside. I see nothing but trees outside. I see bad weather causing massive travel delays by forcing a walk around the ring. I see that a wagon wheel spoke design with a centralized meeting area, cafeteria and atrium would be 100x better than a RING with a forest in the middle. Well thought out design my arse. It's freaking STUPID.