I think I did one thing well on the last question. Watching as many episodes as I did prior to my appearance, I noted one mistake contests made over and over with their phone a friend - taking too long to ask the question and not leaving the friend enough time to think. I think I trimmed down the question sufficiently to give mu cousin (who has since passed away) a chance.
Now the mistakes:
To start, if I'm sitting on the couch at home, I answer Sagan immediately. I think despite the fact that walking out on stage was a somewhat out-of-body experience, I was able to stay calm and focused, but the $25k question is always problematic, since getting it wrong casts $15,000 real money.
Mistake 1: Range of knowledge. I knew that Fermi and Hawking were wrong, but was unfamiliar with Feynman (Bad Kurn!) But I figured the 50-50 was in my favor. LOL
Mistake 2: I picked the wrong friend. No offense to my cousin, but my first choice was unavailable. They come out during the first commercial break to tell you which friends are and are not available. They call all the friends at 11 AM (taping starts at noon), and then again when it's your turn in the hot seat. I was the next to last contestant in the 5th and final show taped that day, and the guy who would've been my first choice (a player in my regular home gam who's an astrophysicist now working for NASA) was unavailable. That left my retired engineer cousin and my bosses wife (I considered her my Literary/pop culture lifeline) who would be ready to Google for me. I chose my cousin thinking this would be a hard Google.(Hint: I couldn't have been more wrong).
Mistake 3: His guess of Sagan should've tipped the scales but I flinched at the thought of only making $1,000 pretax.
Mistake 4: I questioned my focus on Sagan because the day before, waiting for my wife to get dressed for the drive to NYC, I sat in the living room and watched - wait for it - an old episode of Cosmos and thought I was suffering from some bizarre form of reverse recency bias.
Not a mistake but just a random timing issue. The episode taped in late August 2006. In October, I managed to win my seat in the final 27 of the PokerStars Moneymaker Millionaire tournament. Reverse the timing of the two and a probably answer correctly, not worrying since I would've known I had another shot at $1 in January.