Light, yes, because every g of space is another g I can carry. But I don't know anyone who's constrained on compressible volume when traveling. (he says with a 3 day trip packed into the Brain Bag beside him)

Has apple ever really tested this though, because there's enough going on in each iteration that it'd be very hard to scientifically gauge the effects of singular decisions or changes. Maybe they're chasing diminishing returns at this point, maybe there are sacred things that you can't go after. Or maybe none of it really matters and people are buying for reasons unrelated to dropping case size by .1" or .3 lbs

Many airlines let you use a laptop during take off an landing if it is less than 2 pounds.

That's kinda funny if true because I can't imagine that weight is really a reliable indicator of how much radio interference a laptop puts out.

It's not about interference - it's about how bad a projectile the object would be. Below 2 pounds, the idea is that it wouldn't do too much damage.

The 2 pound limit is because that is the amount the FAA has determined is safe to keep in the seat back pocket in addition to the stuff that is already in there. The idea is that if there is turbulence you'd put it in the pocket.

If radio interference actually was a threat, there is no way they would let every passenger take a phone on the plane.

Do they come around with scales to make sure a laptop is 2lbs vs 3?