I know what you're trying to say, but if we are talking about software development, I have very little evidence that "communication with the dead and demons sum

I know what you're trying to say, but if we are talking about software development, I have very little evidence that "communication with the dead and demons summoned via pentagram" are practices that are any less effective than techniques in widespread use such as attempting to specify the entire program in advance of development, attempting to remove defects during a "bug fix" phase at the end, or attempting to make up for schedule slips with forced overtime and canceling holidays. ;-)