my thoughs work along this line
1 ID= a god(s) like being , where they/he/she/its own agenda they wish to hide from us .. thus no way to prove / disprove .. as all evidence is tainted
2 ID = aliens .. therefore they should be some clear clues , as the aliens are not god like and therefore will leave evidence ... not found a single hint of a bit of evidence yet , and we seem to be working things out at a fairly fundemental level ..so i would expect some hint.. and where did the aliens come from any way if they where not ID then it means ID is not the real origin .
3 as a btw if it is ID seems a little short on the I , considering all the problems we face .. why includ virus/harmfull bacteria .. why not have a better regulated planet ????
4 if its the give it a prod to start it off and see what happens ID then where are the watchers ?? given we now can destroy all life on eartyh with our nukes dont you think they would have stepped in to save us from our selves .. or are they not moral .?~?
5 if you had the ability to set ID in action why would you , for what reason .??
it feel we must admit for ID to work and to have a reason we are talking about a god(s) it terms of power , timespan ,resorcese et al .
question is which one(s) ...................
or just maybe its just a natural event this universe we call home ......