Checking back in
So the debate didn't materialize, but our college's youth group went ahead and did something even crazier: they actually agreed to run a camp
all about origins. We hedged our bets by only giving me two sessions (an hour each + half an hour Q&A) and leaving the last day to a guy who's quite firmly reformed and creationist, but from what I could tell the students were okay though some came out a little confused.
What I did
I did the first talk about the origins of the universe. Opened by saying that I was always open to correction and review but here's what I've learned so far. Told students that there was a difference between mechanical ("the water boiled because heat was being supplied to it") and intentional ("the water boiled because I wanted to make tea") accounts of nature; example taken very helpfully from Dinesh D'Souza.
I framed the discussion in the following way: Does the Bible give an empirical account of the universe's origins? If no, then either it's rubbish or it must be telling us something non-empirical; if yes, then you are either a YEC, an OEC (science supports the empirical account) or an atheist (science doesn't).
Asked them to look through Genesis 1 and see if they could identify intent in the passage, what was the purpose of things? They could

and so I gave them a bit of a briefing about the framework view. Then I told them about Enuma Elish and drew comparisons (poly vs monotheism, chaos personified vs submissive, etc) and a possible conclusion (God used a contemporary tale to make a non-scientific account which was egalitarian, i.e. accessible to non-scientific people).
I then told them about the Big Bang on the simplest level possible (Hubble's Law + redshift measurements) and said that most of the YEC counter-arguments didn't really hold water. Asked them to consider, if the Big Bang was really so godless, then how come most modern technology is pretty godless too? I gave the analogy that when a car breaks down, technology usually fixes it just as well regardless of whether one prays or not, whether one is a Christian or not, and said that this is a serious question which extends far beyond theories of origins. Then I did give some indications that fine-tuning arguments can point to design, as well as the fact that scientists don't really have any current theory beyond the Big Bang.
The first session was a night session and so the next session was in the morning; I was told before then by one of my co-organizers that I was coming across as too dogmatically in favor of my views. Oh wow! So I did a last minute brief treatment of the various positions one could take, which are basically what I've seen on CF.com before (you can probably recognize individual posters in my portraits

)
- you could be confused, in which case you should trust that God can still use you and work in you despite your confusion, and commit to working through those beliefs; but don't pretend to be confused when you're actually not and committed to one of the other positions!
- you could be a science guy, in which case you should accept that other Christians may not necessarily accept your scientific evidence as being conclusive;
- you could be a nice guy, trying in really ingenious ways to harmonize between science and scripture, in which case best of luck but be aware that if you're the only person who understands and supports your theory you may just be a crackpot, and
- you could be a simple guy, rejecting contemporary science and clinging to a literalistic interpretation of Genesis 1, in which case you should again not expect the science guys to be very accepting of your views, but you should at least acknowledge that the contemporary interpretation of evidence doesn't leave a lot of room without some kind of omphalos theory (though I didn't use that term).
I then launched into a talk about evolution. I did a crowd-based version of a ratchet game (randomly choosing between alleles - represented by scraps of paper with "a" and "A" written on them - in such a way that "A" was preferentially chosen) and pointed out that their random actions had non-random effects. I went through some of the misconceptions about evolution (organisms evolve; evolution is godless; evolution is completely random and that's rubbish) and then went through my main piece of evidence - phylogenetic similarities; pointed out that while it is possible for similarities to not be phylogenetic, evolution was bolstered by the discovery of the double nested hierarchy. I then pointed out that adaptationism was a massive fallacy ("hey look this evolved, it must serve some adaptive purpose") which I would later link to etiological discounting of religion.
I then went into talking about the Biblical account of Adam and Eve - pointed out similarities with the Gilgamesh epic but again highlighted some important differences. I then did a brief cameo with original sin, saying that whatever we do we need to avoid Pelagian conclusions. But I then used that to take a turn on evolutionary psychology, and asking the age-old question of if evolution is
all there is - if you're not just theistic, but an atheistic evolutionist - then where do our morals really come from? Aren't they just adaptations as much as religion and beliefs are? And I closed on that note.
Reflections and feedback
Most people smiled and laughed at the jokes, and were quiet at the serious parts, which generally indicates that they're either listening or asleep.

The second talk was by far heavier, roaming over a very wide scope, and I think most people got slightly lost in it.
I had the occasion to talk for a while with two of the campers in person after the talks. They started with the question, "But if you really restricted yourself to absolutely just strictly the Bible, what would it say?" I thought for a while about how to answer that, and gave my honest opinion: if you excluded all of modern science from the conversation you'd end up with most likely a YEC or a marginally OEC view. (Which is how I do, honestly, view my current position - but all reading is interpretation and all of that.)
At that they were even more confused. I could see the gears turning - I knew one of the girls did refer to AiG sometimes for apologetics info - and then one of them complained, "Before you told us any of this stuff, my faith was really simple and I thought I could just believe the Bible. But now my faith is being challenged. I don't know what to do."
I told them that okay, maybe you could reject the scientific evidence, but in our modern world your faith is bound to brush up against something. Is it theologically right, I asked them, to go for cheap clothing sales, knowing that you might be funding sweatshops in poorer countries? Was it right for Obama to institute universal healthcare, and take taxes from people for things they didn't want to pay for? What if you were a lawyer, and someone asked you to arrange a divorce? Or if you were a doctor and someone asked for euthanasia? I told them that if they wanted to, they could sit out this fight, but really there was no way they could sit out of a fight forever. I didn't really see much relief come to them. I felt sad.
I had to rush home because my girlfriend Florence was flying back to Prague that night and I wanted to see her off. As such, I was unavailable when carnage occurred the next day: the creationist I mentioned earlier took the stand and confidently assured the students that science was ever-changing but evolution surely had never occurred. Chaos ensued. In the end, one of the other speakers (a psychologist who spoke about the psychology of sin) made the point that faith was always a journey and sometimes it was painful and difficult, but the truth was worth knowing.
Interestingly, though, at lunch earlier in the same day, someone came up to me and asked me whether Cain's wife could have been from one of the hominid groups lounging around at the time of Adam! I was initially shocked, but in retrospect I remembered that there is an American-trained academician (Ron Choong) who's been pushing fairly modernist views to whoever will hear him. Just a sign that you can't hold back the tides of progress.
What I would have done differently
I don't know, I think I did the best I could. I still struggle with being undogmatic about something that, as far as I'm concerned, seems cut and dry. "I can see how you could see it that way" just doesn't ring a bell.
I would definitely have emphasized more on the non-literal ways of knowing - stories, myth, analogy, metaphor, allegory - and tried to defuse some of the concerns about a non-literal Adam. Not many came up though! One definite change - Q&A sessions with young people should not be "free". It would have helped them a lot more if some of the more conservative lecturers came up on stage and gave me a nice good grilling
What do you guys think? Can 17-18-year-olds learn to handle this stuff properly, or do they need to grow a bit more before we even try?