Sabine Hossenfelder discusses some problems in physics that she thinks are worth working on.
It turns out that if he said your idea was "impossible," it wasn't really a criticism.
In case you needed to know.
A useful discussion.
Speaking as one, I fully agree with the answer: "No."
"The world's oldest Nobel Prize winner, a 96-year-old physicist, says his new invention will give everyone in the world clean, cheap energy"
Publish it, man, publish it!
More weirdness from modern astrophysics: "Two newfound galaxies appear to be devoid of the mysterious substance, paradoxically providing more proof dark matter exists."
An argument that it's just "theoretical high energy physics" that may well be having problem, not physics as a whole.
As one myself, I approve of this message.
The "if true" is the really tough part. See, for examples, "A Billion Years In Interstellar Space: What We Know Today About 'Oumuamua" and "Is Oumuamua an Alien Spaceship? Sure! Except, No".