I thought I'd answered that question in a humourous way but apparently humor is only humor if it's allowed to be and is source dependent.
Ships can't go backwards as fast as forwards. Their engines can but their propellers are less efficient in reverse, posting large pictures of irrelevant objects doesn't validate anything.
Rail locos can, but it's better to see where you're going and turntables became available. Push/pull units on steam branch lines had remote driving stations at the other end of the passenger coaches.
https://www.youtube.com/watch?v=uNJmjC-vt10
Nice builds Mike.
Micromodels were very popular during the war since everything needed could be stuck in a cigar box and be taken anywhere in a kitbag.