We aren't strong enough to fly with artificial wings on earth gravity, but it seems like moon gravity could work pretty well.
(I think this idea is from an Arthur C Clarke novel?)
sorry, should have refreshed the page oftener...
So what? Just use a lightweight powered exoskeleton to augment your strength. It will likely happen decades before pressurised domes on the moon, too.
"For over thirty years, he has been studying, modelling, building and testing his own ornithopter — an invention that was first conceived some five hundred years ago, but is yet to be implemented successfully."
This is so falsely absurd I am not sure where to begin. Many ornithopters have been constructed that flew or fly successfully; there have even been a few successful full-scale attempts. Most were models, though.
A recent model implementation:
...which was inspired by a much older toy - which itself (if we're being honest) was probably based off of even older examples:
Then you have Paul MacCready's Pterodactyl:
I won't go on...
A true gem, especially given the uneasy times people of Ukraine are still going through.