On a different tack, if the disc of the earth is continually moving upwards ad infinitum, why do the gasses that we breathe not spill over the side? the ice wall does not go as high as these gasses, so the accelleraton would force some over the sides, then the syphonic effect would gradually suck the rest of the gasses with it and we'd all die of suffocation and explosion as happens when you put a goldfish in a vacuum. (Not to be repeated.)
Also a continuous increase in speed means a continuous increase in energy and we all know that energy is finite in the universe, so eventually we are going to use up all the energy in the universe and as such the universe will collapse and we will all die. A massive problem is given that accelleration is a squared value, this will exponentially increase and every second we must be sucking in more and more energy. I think we may only have days left.
That is unfortunate.
Sadly something similar will happen in Round Earth Theory also, just not as fast as entropy reaches 1, time will stop and everything will cease to exist as you need time to exist. Bleak but hey ho. It will take much longer in Round Earth Theory.
Since Flat Earth Theory is all about pretending the bad stuff (or stuff that proves them wrong) doesn't exist or is just wrong because, it's maybe time for them to start believing in Round Earth Theory, at least that way we have longer to exist.