Living in Silicon Valley, I know of at least one couple that is stock piling water, food, bullets, and scouting out wilderness property in expectation of the JudgementDay.
What he meant is that he knew all the research on all medications and treatments, but at the end of the day every patient is unique and he would have to make a judgement call on what exact treatment to prescribe.
It was there that he formed the belief that Palestine was an Islamic land "consecrated for future Muslim generations until JudgementDay", and that no Arab leader had the right to give up any part of this territory.