If you unironically have fallen for the flat earth CIA psyop, there is one easy experiment you can do to prove yourselves wrong.
Step 1: buy GPS enabled go-pro
Step 2: buy high altitude capable balloon
Combine the two, watch the balloon go up, track where it lands, watch the footage for yourself and free yourself from Mockingbird bondage.
For a little extra, you can configure a live feed system and watch everything in real time all under your control! Yes, it really is that simple!!!
I asked my dad who just retired from 40 years at NASA the question about the Van Allen issue with radiation. I will butcher it slightly because it is a complex explanation but here goes:
Due to solar winds and other forces there are areas of the Van Allen that are far more narrow than other areas and the missions that actually go to deep space pass through the thinner areas to minimize exposure. Most missions do not go to outer space so they usually do not deal with the Van Allen, but when they do go to outer space they have to hit escape velocity of about 25000 MPH (about 7 miles per second) and at that speed they pass through it quickly so there is no lasting damage. Less than 1% of all missions actually go into outer space so yes most people you see claiming they went to space are not actually going into deep space so it is easy to make that argument with semantics. Satellites are not in deep space either. Some flat earther talking points are on the right track just not fully understanding key pieces of info.
Additionally, I have had tons of conversations about space stuff in my life and different projects he worked on and I can say definitively it would be easier for the earth to be flat than it would be to make up the entirety of the space program, space project, and all of the nuance.
My final point...The media gave so much coverage of flat earth that I actually do think it was CIA or disinfo op. I do not believe there are as many disinfo ops as people think but the media barely touches other conspiracies and seemed to skyrocket flat earth to the top of the list overnight while still never acknowledging other large conspiracies.
I mean by that definition everything could be fake so it was a poor argument on my side. I actually think the elites want to go off world and want to keep us from it. It's more plausible considering they are all obsessed with space, going to Mars, building moon bases, mining asteroids, etc...so whether or not flatearthers believe in space it I'd clear the elite Satanists do.