Occam's Razor works in favor of the Flat Earth Theory.
What's the simplest explanation; that my experience of existing upon a plane wherever I go and whatever I do is a massive illusion, that my eyes are constantly deceiving me and that I am actually looking at the enormous sphere of the earth spinning through space at tens of thousands of miles an hour, whirling in perpetual epicycles around the universe; or is the simplest explanation that my eyes are not playing tricks on me and that the earth is exactly as it appears?
The simplest explanation is that the earth is round, and goes in an orbit around the sun. This is because we have the evidence for it, and how you look at the world, is exactly how it should look, because the sphere is extremely large, and because there is a vacuum in space, the atmosphere is standing still (more or less), relative to the surface. We do feel the affect of the earth spinning, because the gravitational pull is a little lower at equator, than near the poles, so you do feel lighter near equator.
What's the simplest explanation; that NASA has successfully designed and invented never before seen rocket technologies from scratch which can accelerate 100 tons of matter straight up at 7 miles per second, and that NASA can do the impossible on a daily basis, explore the cosmos, and constantly wow the nation by landing a man on the moon, sending robots to mars, and space ships to explore the solar system; or is the simplest explanation that they really can't do all of that stuff?
Never before seen rocket technologies? Most of the modern rocket technology actually came from Germany, and a large quantity, from the German V2 Rocket program, which I believe was the first rocket engine that used liquid oxygen. They were also never meant for space travel, but long range missiles. And they have been developing everyday of the year for about 50 years. You also say yourself that you have been to a shuttle launch, so you have seen a shuttle reach at least 10-30 miles up in the air, and a live feed from the shuttle on big screen from before takeoff, and into space, with no interruptions. 7 miles a second isn't very hard if you yourself do the calculations on the thrust of the engine, weight of the shuttle and so on. And it's not illegal or impossible to invent new technologies. And please give me an example of the sort of "poof, HUGE leap in technology without explanation" inside NASA.
So, what is most likely, that there is a global conspiracy, involving several thousand workers, and has been active for about 50 years, faking EVERY single satellite picture, video, LIVE video, LIVE launches, moon rocks, every single satellite (many thousand), WITHOUT an explanation for even a quarter of those things I just listed?! Or that what we have been able to explain for so long, with evidence, which makes perfect sense if you do some research yourself into the matter, and actually can something about the topics?
Also, no satellites or rockets or shuttles ever moved stright up at 7 miles per second. They eventually flat out, to go into a stable orbit where the centripetal force is equal to the gravity of the earth.
What's the simplest explanation; that when I look up and see the sun slowly move across the sky over the course of the day, that the globe earth is spinning at over a thousand miles per hour - faster than the speed of sound at the equator - despite me being unable able to feel this centripetal acceleration, or is the simplest explanation that the sun itself is just moving across the sky exactly as I have observed?
As I said, you do experience a lower gravitational pull, but can you really feel the difference between 9.81 m/s^2 and 9.789 m/s^2 ?
The most plausible explanation is not the one that maybe make sense to someone like you who don't really understand the beauty of physics behind all these mechanisms you blindly deny, but it is the explanation that can be backed up by evidence and observations, which is a round earth. Also, we cannot feel constant speed (when you are flying at about 600 mph, do you feel like moving 600 mph, or do you only feel small bumps up and down, and acceleration and deceleration (takeoff and landing) and turning?, we can feel acceleration, but our senses are not super sensitive. Luckily we have simple tests which can show this difference in acceleration towards the earth, and advanced equipment that does it even more precise.
What's the simplest explanation; that the sun, moon, and stars are enormous bodies of unimaginable mass, size, and distances which represent frontiers to a vast and infinite unknowable universe teeming with alien worlds, galactic civilizations, black holes, quarks and nebulae, and phenomena only conceivable in science fiction; or is the simplest explanation that the universe isn't so large or unknown and when we look up at the stars we are just looking at small points of light exactly they appear to be?
If we were without evidence, we couldn't tell if the sun and moon were large and far away, or small and close, so yes, then the chance would be about 50/50. Luckily we do have the possibility to run those tests, measurements and observations, which all points to huge, and far away. So there is a much higher possibility for that the sun and moon are large spheres, far away.