1. he is saying md/english is the new source code.. 2. yes - it is different that is geared towards english and very well supported by LLMs that is why it is being used in memory and instructions 3. llms are deterministic enough to translate adequately described specs into working system, the idea here is reason in md for core flow etc, and then verify with test cases

this not perfect but he is describing a real trend, so listen with open mind.