Concave earth has never been debunked. In fact, it's impossible to debunk. You're inside, looking up to the heavens in the middle. Deal with it.
>Do some research into scientists in the 50’s talking about the moon … they say it’s made of plasma
The moon has a firm surface. The plasma is above the surface.
>The job of the Anon is to question and you failed.
If you want to question and learn, trying reading Johannes Lang's Die Hohlwelttheorie and Mostafa Abdelkader's A Geocosmos: Mapping Outer Space into a Hollow Earth.
>lights don't contain the full visible spectrum
Wrong. Intensity can very at different wavelengths depending on the bulb, but even cheap bulbs are full visible spectrum.