"In retrospect it ended up not mattering. But I was building up information to --" Cultural Adaptation (dath ilan) warns him that sane people do not make cases for a side "-- figure out whether or not your memories were false, with an eye to presenting all the cumulated evidence at once if it should lean in favor of your world being a dream. Much of that evidence was being derived from Cultural Adaptation. I didn't want to answer questions, prematurely, about what the spell was telling me."
"We have reached the point where it is time for me to make that case."