Did you watch the 2 space x rockets simultaneously land a few months back.
Futerism, the speed technology is advancing, self learning computers, AI, and quantum computing will make it possible.
Boeing are working on pilotless and Airbus are fairly far along with single pilot ops. The role of a pilot is going to change.
I ageee at the moment it seems impossible. And if it’s economically viable, the cost saving of crew vs having to carry more fuel and increased possibility of diversion is a possible distractor.
But somewhere in the world in the next 30-50 years someone’s going to have a crack at it.
Personally i I think single pilot ops are far more likely.