Comments by "GunFun ZS" (@GunFunZS) on "Perhaps the weakest link in the US electrical system" video.

From an evidentiary standpoint fire investigation and criminal profiling are very problematic. They have reproducibility levels on par with phrenology. Worse, they both tend to base life altering conclusions on a process that amounts to: step 1 form an opinion. Step 2 look for evidence that appears to support the opinion. Step 3 announce conclusion. Step 4. Take credit for hits. Ignore misses. Get publicity. Get funding. Teach in a seminar, and produce certification for others. They both are abysmally inaccurate, and fail audits of every kind.
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@Yora21 it made sense when if was developed. Scales were the most precise and accurate measuring tools available. Materials were sold by weight. Dimensions were fairly variable through a piece of material. Spot measuring a location would be inaccurate. Better to get a chunk that is big enough to minimize the effects of differences in rulers and put several of them together and average what you find on a scale. It gives you a better picture of the properties of the material as a whole, using the most precise tools that were available in the early industrial age, and even pre-industrial. Keep in mind most things are based on doing visual divisions halves thirds and so on. Which is the thing that humans can do a lot more precisely than you would think. See vernier effect. That's why a lot of old systems were base 12. Or 240 for the money, which also works with base 12. Everything is usually divisible by halves quarters and thirds. The cage system grew out of this method of thinking I have a known weight I can divide it and even number of times to come up with a diameter or a thickness of a given size of a plate or ball or rod. They did not have calipers or micrometers. But they did have scales.
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