Law of physics are universal regardless if the planet you come from. Humans have sent unmanned spaceships far into the solar system. Will one of those crafts ever reach another solar system? I doubt it because there is vast cold dark space between our sun and the next sun, bigger by orders of magnitude. No way to charge solar panels. Without power guidance systems and propulsion energy is dead.
Law of physics are universal regardless if the planet you come from.
OK, so we know everything and there is nothing more to learn because according to you,we know everything there is to know about physics and there is nothing more to learn. That is kind of an absurd outlook is it not?
Physics is always advancing.
In 1900 it was scientific consensus that powered flight was hundreds, if not thousands of years in the future.
In 1903 we flew in what was basically a powered kite.
In 1943 we were flying across the oceans, shooting rockets at foreign countries, and closing in on breaking the sound barrier.
In 1983 we were flying regularly into space, had hundreds of satellites circling the earth and a supersonic commercial aircraft.
In 2023 we were not that much ahead of 1983. What happened?
What happened was physics advanced. We have capabilities that are not public knowledge. Why? Because they are disruptive, they are dangerous, and they are being withheld to be used in the event of an existential crisis.
After splitting the atom, the next advances in physics are clear...quantum mechanics, fusion, zero point energy, and anti-gravity. Any of these technologies falling into the wrong hands could be devastating. At the least they would disrupt the world economy. It was determined long ago that scientific advancement would only happen with the approval of those in charge...and those people are not necessarily our elected leaders.
My uncle, who was career Air Force intelligence, who went on to work for the DOE, and ended his career as head of security for Los Alamos and Sandia Labs said to me once:
“You like science fiction? Imagine what you think we have. Now add 100 years. Now you’re getting close.”
You labor under what we already know, not what could be. Many people have seen something, and those are credible witnesses. Instrumentation has tracked objects doing things our craft cannot do. It is not very scientific to assume those things were not observed just because we cannot explain their behavior. It is much more scientific to assume there are things we do not know or understand and work from there.