How does this thing actually work?

But that's wrong...

youtube.com/watch?v=6jar9DjR5Vs

Videoshopped

If the earth was round, boomerang would appear to fly in a straight line from the perspective of a reference frame stationary with respect to the boomerang

my world is in shambles user ty

Did you actually read the linked article? The researchers found that the trail, front assembly CoM, and front wheel gyro all contribute to and are required for stability. If anything, it shows that the scientific method still applies to items as common and trivial as the bicycle.
Look at the design section on Wikipedia if you want to know why boomerangs curve; it's relatively simple.

>science doesn't know how bicycles work
>researchers-explain-why-bicycles-balance-themselves
What did he mean by this?

>the trail, front assembly, the front wheel gyro all contribute to and are required for stability

Wrong.

>"There are other ways to distribute the mass and get self-stability without gyro or trail," Ruina noted.

bicycle.tudelft.nl/stablebicycle/StableBicyclev34Revised.pdf

It uses sky magic to defy gravity and only returns if the tree spirit has been honoured, like most flying sciency things

I've seen that paper before, but they don't actually explain how it steers into the curve if it doesn't have trail. But the steering axis is still at an angle, so I guess that's it.

Wrong again blet