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Sorry about being a smart arse, I don't think the innovators have gone as such it's just that innovation isn't as necessary. There are great products available now off the shelf that simply weren't around a little while ago. There isn't the same need to improvise. If I needed a new vacuum I wouldn't try to cobble one together out of bits in the shed, I'd go buy one. The same logic can be applied, as in your original post, to the BM or grainfather. There are still great innovations and hacks popping up all the time though for grainfather and BM other parts of the brewing process, You probably have your system and process pretty smooth though so you are not looking at some of the things that are going on elsewhere.