It started long ago, i took all the science classes in college, learned all the book stuff.
And then i started running into counter narratives.
Pieces of data that didn't fit with the main stream narrative.
Like, when studying Nikola Tesla.
Every "scientist" says that Tesla was a show boater, that he rigged his experiments to fool the news men
... however, when you look at what he did, that explanation holds no water.
Making hundred foot lightening arcs on command (as Tesla did) is not something i see physics professors repeating.
(the longest on record is 110' when a substation melted to the ground in the hot, dry Arizona day.)
After that i studied much about all kinds of phenomena.
Of course, this includes flat earth.
Now, with flat earth... all they really have is enough data to show the ball earth as wrong, but there isn't anything real to show the earth is flat. What you find is a bunch of facts that do not make any sense to flat earth or ball earth. So, we are probably dealing with something else.
All the photos of earth are faked, or photoshop. ("Strange thing that happened on the way to the moon" - a video to watch). NASA has been caught manipulating photos so much, they are not to be relied upon. When really questioned about the moon landings, all the data, is suddenly gone.
Every test to measure the curvature of the earth has failed.
The flat earth people are not doing too great on measuring its flatness.
Way before flat earth started becoming a religion, a thing...
There were these guys who took the evidence from the original lighthouse person.
The first guy, took data from the govern-cement published books on how far away a light house could be seen. And computed that some of the number put the light houses over the edge of the horizon. The "scientists" got a famous mathematician to prove him wrong. All he said was, his mathematics is correct.
So, this other group of men, went and looked at far away they could see a light house.
On a still night, with binoculars and telescopes, they found they could see a light house that should be wwaaaaaay over the horizon.
Each light house in an area has a unique flash pattern, so you can tell which light house you are seeing. So, there is no mistaking they were looking at the correct light house.
If true, and there are lots of evidence and reports that it is true. (and now, IR photos of cities from huge distances away)
One of my better theories is that the earth is a flat 3D space (all the axis at right angles) and this space is folded into higher dimensions. So, we literally can't tell from the inside. Light travels parallel to the earth's surface, because to the light, that is flat / straight.
And then, you can read about hollow earth theories. Lots and lots of tales of this from ancient texts. Add that in, and we have no clue what shape the earth is.
RE: Do You Really Know What You Think You Know?