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How on earth can a test be more predictive than the thing it is testing for? Let's try to keep the conversation in the realms of logic, please.

James.

It can be made more reliable with time. I remember my early forays into HHTs - my best ones were when the razor was quite ragged actually: shaveable but not that comfortable. As time progressed and I...

I have a stash of hair I keep in a rather disgusting tangle near the microscope. It's a mixture of my wife's hair, my sister in law's hair, and my nieces hair. For some reason the males in my family...

There was in fact a group of us started emailing each other back in 2007/8 I think it was. It was an interesting group of people actually: a materials scientist, me (mathematician/statistician), an...

No one is disputing that the HHT can be useful. No one has really disputed that for quite a number of years now.

Also, no one is disputing that there are gradations of "success". Anyone who has...