EM drive was just a recent example of my point - that people touting a little bit of science have been wrong to declare something impossible many times.
NASA and others are still testing those drives so last year might be a bit premature to write the idea off?
The difference is we don't know how the EM drive is working (or are we sure it is working).
The 3 projects in the parents flat out don't work, and we know why they don't work -- or at least know to what extent they will work.
By the logic you have presented then we should be funding projects that wish to compress all 8 bit connotations into 7 bits. I can go make a nice video of how awesome it would be if we could do this. How it would change the world. Literally, if somebody could compress every 8 bit combination into 7 bits it would change the world overnight. Should we fund a product that advertises it could do this with a nice video and a website?
>EM drive was just a recent example of my point - that people touting a little bit of science have been wrong to declare something impossible many times.
[1] https://www.youtube.com/watch?v=jCAqDA8IfR4