Sorry for downvoting you twice (here and on your other comment), I feel like I owe you an explanation: Dan, if you have something to say, just say it. This rhe

Sorry for downvoting you twice (here and on your other comment), I feel like I owe you an explanation: Dan, if you have something to say, just say it. This rhetorical Q&A works in a conversation; here, it just looks petty. In fact, I think I agree with what you're trying to say ("the flight itself exposes you to a lot more radiation"?), but if you don't actually say it, I can't be sure. And there's nothing to respond to, if I (or someone else) don't. Not that I'm the boss of anyone; by all means, do what you want. Just that I dislike getting downvoted without explanation, so here's to being slightly less of a hypocrite than usual :)