I get your point, but it is pretty speculative to suggest that travel faster than the speed of light will ever be possible. No physical law of nature prevented any of the advances you've quoted - they were just engineering challenges.
No current physical law. All the advances were preceded by a new understanding of how the universe worked. All the advances that will come, will also be preceded by new understandings.
I postulate that the only constant is our own ignorance. I will not argue that we may reach a point where we know everything and thus can't advance any more. I just don't believe that point exists, but I have nothing to support that belief.
Over a span of even thousands of years I'm sure we'll be impressed with what mankind achieves with engineering.
However, I don't think anybody can make any bets either way on whether there are ways to effectively travel faster than the speed of light. There may or may not be new physics out there that we can rely on. We don't get to invent the laws of nature - we can only exploit what we discover, and there may or may not be anything useful to discover.
Oh, I see we did reason in the same direction. Ok, then I agree with you in everything but the "may not be anything useful to discover".