"Just because you never heard of it doesn't mean it can't be done ...
"
Is that a "neener-neener" sort of thing? Could you explain, perhaps an experiment that one might use to measure the one-way speed of light? I've done the reflected light method many times, but I'd be very interested in finding a way to measure the speed of light in one direction.
Actually, you measure the incoming angle from the starlight at two opposite positions of the earths orbit and using the incoming angle and the earth's speed the speed of light was calculated. Done about 200 years ago but they got within about 1%.
block of cheese and a microwave oven. :-)