For starters, that’s a rather simple principle of Time Travel right there – and according to the pioneers of time travel, it’s one of the foundation stones of the Theory behind it. It’s something of a paradox – a mind-boggling annotation in the ever-puzzling and ever growing Anals of History. (Some readers may still be thinking that should be ‘Annals’ – however, the author of this work cannot be blamed for what you may think.)
Wings are of many kinds. Butterfly's wings, vulture's wings, eagle-wings, spread wings of white swans, dragonfly's serene wings, wings of albatross, lovely wings of humming birds, tiny wings of a fly or a bumble-bee-wings; and when they fly, they fly their best according to their ability of flying. We should not underestimate the size of those heavenly wings.