Wow, never heard of the term either, but I think that prepping as we do it right now is more planing ahead in anticipation whereas what he explained sounded more like the actual act/time all this planning, in terms of seizing the opportunity that’s at hand while in sort of a free fall state.
For me, besides the regular prep for the homestead, I try to prep in anticipation for those said opportunities to come. Like a threaddle sowing machine which operates without power so that I can sew clothing, etc. for others. Get more books with all sort of skills (like upholstery) to learn and offer those services. Everything that can be used for some sort of trade. The more skills we have the more flexible to realize opportunities when they present themselves.
Darn, I already thought it would be more than a 10-year span to get through this, but 40?! 😳 I gotta live to 100 to tell about it. 😳 😆