Not Been Back!
Since the final moon landing of December 1972, no astronaut has set foot upon the moon. Why not? We can't get an astronaut on the moon today, the equipment doesn't exist. Aha! If we can't do it now with 21st Century technology then how could the USA possibly do it in the 1960's and 1970's?
It must have been a hoax! ....Anybody recognise this aircraft below? You got it... Concorde. It's first flight was in 1969, final flight took place in September 2006. We now cannot fly 100 passengers at Mach 2 (twice the speed of sound) in any aircraft anywhere on Earth. Therefore all 16 Concordes built, all passengers & crew that flew on them for 37 years must have been lying. Concorde was a hoax! You agree with this argument?
If you don't, congratulations! Silly isn't it? Concorde became too expensive to operate. All kinds of other projects now don't operate for various reasons; the Hydrogen airship is another example.