People used to think that UFOs were impossible because they didn't show up on radar - and now we have stealth technology. People seem to think that sonic booms are inevitable - yet only the transfer of some energy into heat (due to the second law of thermodynamics) is required. The speed of sound varies by the density, temperature and properties of the medium in which it travels (in most material limited to around 107,000 miles per second). http://www.2physics.com/2015/01/sound-velocity-bound-and-neutron-stars.html

Thinking that aliens with technology capable of crossing interstellar distances will travel in craft that make sonic booms is like someone in 1700 thinking that a 200 HP race car will be something pulled by two hundred actual horses. It was less than 120 years ago that the first powered flight was made possible using pressure differences caused by speed. I am always astounded by scientists now who think something is impossible because human science and engineering have a limited grasp on a subject.

Too many small minds working like cogs in a giant machine. Science has become a religion, instead of the rigorous application of disciplined observation, thinking and experiment. We are no longer looking for proof of statements, but accepting what "experts" know and say. That's exactly what enabled the Covid panic to continue growing, instead of being squashed like trying to divide the square root of negative one by zero.

People used to think that UFOs were impossible because they didn't show up on radar - and now we have stealth technology. People seem to think that sonic booms are inevitable - yet only the transfer of some energy into heat (due to the second law of thermodynamics) is required. The speed of sound varies by the density, temperature and properties of the medium in which it travels (in most material limited to around 107,000 miles per second).

Thinking that aliens with technology capable of crossing interstellar distances will travel in craft that make sonic booms is like someone in 1700 thinking that a 200 HP race car will be something pulled by two hundred actual horses. It was less than 120 years ago that the first powered flight was made possible using pressure differences caused by speed. I am always astounded by scientists now who think something is impossible because human science and engineering have a limited grasp on a subject.

Too many small minds working like cogs in a giant machine. Science has become a religion, instead of the rigorous application of disciplined observation, thinking and experiment. We are no longer looking for proof of statements, but accepting what "experts" know and say. That's exactly what enabled the Covid panic to continue growing, instead of being squashed like trying to divide the square root of negative one by zero.