

I wouldn’t call compressed air extremely dangerous, but more than you’d think.
It can hurt you in a lot of ways and it’s often played with like a toy. Like blowing air in somebody’s face, don’t do that, think of it like coming at them with a handheld drill. Treat an air compressor like any kind of power tool, not exactly dangerous but can hurt you.
My observation is that the accomplishments of older times would be entirely impossible today, like basically all the public services we enjoy wouldn’t be possible if they were proposed as a new thing.
Take the post office, if somebody had a big idea for the government to build tens of thousands of buildings and hire over a million people just to move around pieces of paper - they’d be laughed out of the room. Impossible, the government couldn’t and shouldn’t do any of that. All public services: the fire department, the police department, and especially public libraries, that all couldn’t be created in the current political environment if it hadn’t already been built.