Process knowledge.
Equally applicable to the diffusion of technology as to the fragility of an investor. Industrial design without manufacturing is like an ETF without first principles ability: a trade between capital efficiency versus longevity.
danwang.co/how-technology-gr…
Replying to @LT3000Lyall
The real reason Buffett didn't buy is he knows how to do math, and the mathematics of compounding and DCF valuations, much much better than the average growth punter that determine the success or failure of their judgment by the share price, rather than cash flows out vs. in.





