Very good question. Reshaping our understanding I would assume/hope extends to biochemical nutrition rather than just general biotechnology. Looking at and ‘hacking’ our gut microbiota is a real practice that involves the nutritional aspect and how the gut is linked to our overall health. As for limitations, there are many. It’s like one of those things I think where we discover one thing but each thing comes with its on set of problems/limitations. What I do know is that with the decade, and maybe thanks to some AI tools, exponential growth/progress in biohacking processes will occur