I'm still processing the article in my head, but as I understood it: it's important that all cells in your body share the same genome. For some reason, evolution in multicellular organisms can be seen as two-tier - competition between the cells, and competition between collections of cells (organism). The higher-level competition forces the individual cells to behave in fully-cooperative way; those organisms that can't enforce order within get cancer and die prematurely.
The mechanics of it seem sound, and it's a nice model for a lot of things, natural and otherwise, but I'm still confused about how such two-tiered evolution could've arisen in nature wrt. multi-cellular structures.
I'm still processing the article in my head, but as I understood it: it's important that all cells in your body share the same genome. For some reason, evolution in multicellular organisms can be seen as two-tier - competition between the cells, and competition between collections of cells (organism). The higher-level competition forces the individual cells to behave in fully-cooperative way; those organisms that can't enforce order within get cancer and die prematurely.
The mechanics of it seem sound, and it's a nice model for a lot of things, natural and otherwise, but I'm still confused about how such two-tiered evolution could've arisen in nature wrt. multi-cellular structures.