Talking to a conspiracy theorist about either the moon landing or the flat earth theory is exasperating. They discredit a scientific theory on the slightest technicality in your brief retelling of it, but if you baulk at their vague one-sentence alternative you're brainwashed.

You can tell them about the retroreflectors, or the satellite images we have of the landing site. You can tell them about sundials, the phases of the moon or constellations.

They don't care - anything can be faked and their definition of "proof" boils down to seeing it with their own naked eye.

It's totally impractical to take everyone up in a Red Bull balloon to see the curvature of the Earth for themselves. Presumably you'd have to take everyone up twice at two locations to show that the circular horizon is not an edge. Or kill two birds with one stone and take them to the moon landing site and back again because nothing less will suffice.

Because if I take them to the most advanced telescope in the world and focus it on the moon landing site - the image could be faked. You could show them how the telescope works, but each component could produce a faked output. The only way they would accept the telescope information is if they built it themselves from raw materials - oh you used a standard electronic device such as a basic motor? Illuminati dude, that thing can produce EM waves that fake the image. You're going to use a Macbook to read the USB output? Are you a shill?

Literally nothing is good enough but they are all, without exception, too fucking lazy to go and prove it to themselves from first principles.

Which is called "getting a degree in physics", where you are also taught to question every step, AKA being "brainwashed".

>> Drop a penny in some flour if you need a visual of what I'm talking about.

Again, you're equating Earth's gravitation and atmosphere with the moon's. As long as you continue thinking of standing on the moon like standing on Earth, I think it'll be easy to keep seeing inconsistencies.

Instead of a penny in flour, consider a bowling ball in snow.

>> The evidence is still there.

At the end of this episode of Mythbusters they used a giant laser to shoot a beam at the moon where there are, in fact, still mirrors (called retroreflectors) sitting there. And they did their sole job, bouncing the laser beam right back, proving the mirrors are there, so we actually don't have to go back to find the proof.