Historians will have to face the fact that natural selection determined the evolution of cultures in the same manner as it did that of species.
So someday in the near future hopefully rather than having a foot or a leg amputated we'll just give you an injection of the cells and restore the blood flow. We've also created entire tubes of red blood cells from scratch in the laboratory. So there are a lot of exciting things in the pipeline.
It is my misfortune - and probably my delight - to use things as my passions tell me. What a miserable fate for a painter who adores blondes to have to stop himself putting them into a picture because they don't go with the basket of fruit! ... I put all the things I like into my pictures. The things - so much the worse for them. They just have to put up with it.