I wouldn't swap a dang thing. I keep a full belly, I stay in a warm house, I don't have to use an out-house. I don't have to deal with a damn horse. I got to see the first man in space and the first man land on the moon. I didn't have to fight my way through France in '18 or '44.
Before about 1900, you would be an old man at 40 and usually dead by 50. Go back to the middle ages and you would be old at 30, and not expect to live past 40.
You couldn't drag me back in time. Now I would like to go about another 30 years into the future, but I am willing to be patient to do that.
"It is better to be too skeptical then too credulous"