If any body has read War of the Worlds or has simply done a science experiment (I know those are two very different things, but trust me, they connect) then you would know that if you even change the tiniest thing in any of the variables, you'll know that the result will conclude differently. I think that if any microbes from Earth came i contact with alien life that it would definitely change the outcome had it not. So, I think maybe observing before we jump to see what is going on is most likely a better option.

it would be cool

My opinion is that I think that this is the next generation of awards ceremonies. This is the kind of thing everyone wants and if we just change a bit of the rules, this could be something amazing, awesome, and fun.

If any body has read War of the Worlds or has simply done a science experiment (I know those are two very different things, but trust me, they connect) then you would know that if you even change the tiniest thing in any of the variables, you'll know that the result will conclude differently. I think that if any microbes from Earth came i contact with alien life that it would definitely change the outcome had it not. So, I think maybe observing before we jump to see what is going on is most likely a better option.

I think it is pretty cool and I like the airplane part.

my opinion is that that would be a blast to through paper planes and see so many paper planes.

The alien might die because he might not know how to get rid of the sickness.

Well, for one, if the ice hotels were permanent it would go from "The Ice Hotel" to "The Puddle". I'm sure the sand would last a little while but erosion would take a great deal of it away. Also, if you keep a special thing like these hotels in a certain place and you are able to preserve them, they wouldn't be as special anymore. You just lose interest and when you walk down the street with your friends you just start saying, "Oh, yeah. Look, somebody's tongue got stuck again on the ice on the door. I guess they'll just have to call the Ice Police." See, you just start getting used to it and that's probably not one of the people who build these things goals.