Here in Texas, the after-effects of Hurricane Harvey have produced some truly spectacular cloud formations - and some of the most gorgeous sunsets I've seen in a long time.
Here is a 180 degree panoramic photo taken from my balcony last night (Sept 9th 2017):

And here is a single-shot photo with the camera pointed off to the West just a few seconds earlier:

My house is oriented North/South and the balcony looks out to the West. Because we're close to the equinox (Sept 22nd), the sun is setting almost exactly to the west - right in the middle of both photos. When I took these pictures, the sun had clearly just set...and it had disappeared below the rooftops of those houses that you can see on the skyline.
Now...according to the "altered perspective" thing that Tom keeps insisting on (and which is mentioned in about a dozen places on the Wiki) - the reason that the sun isn't 30 degrees above the horizon (as we'd expect since it's 6,000 miles away horizontally and 3,000 miles up) is because of some weird perspective thing...and the reason we can't still see it anymore is because we're no longer inside the cone of light that it projects downwards.
This is so poorly explained that it defies logic...but that's typical of all FE theory.
But here's the thing. The undersides of those clouds are CLEARLY being lit from somewhere. Sunlight from the setting sun is lighting the clouds from below...not above as you'd expect if the sun was "really" 30 degrees above the horizon and projecting a downwards cone of light...which we're clearly on the darkening edge of.
This effect is easily explained in RET because the sun really is "below the horizon" - so for a short period after sunset, the suns rays are shining upwards and lighting the undersides of the clouds.
I live in a "dark skies" neighborhood where outdoor lighting has to be kept to a minimum and directed downwards as a requirement of the building codes - so this can't be lighting from buildings or street lights because we have neither.
So how is this explained by the "altered perspective" theory?