Everything is harder or more dangerous that's not been done. Otherwsie it would have been already, right? I get your point but things become normalised over ti

Everything is harder or more dangerous that's not been done. Otherwsie it would have been already, right? I get your point but things become normalised over time and mechanisms/technology invented to deal with the risk and conditions. If you'd said to people 150 years ago that there would be (well pre-covid days) at any one time about a million people at 30k feet flying around in basically a tin can, journeying across the world in a day, they'd say you're mad and it's too dangerous to achieve. They didn't have the technology capable, like a jet engine or fabrication techniques. Maybe in 50 years we do have a new technology that meets the crtieria needed, maybe not, but the same happened before and I'm sure it'll happen again.