I think this is where the question of “what is TA really” comes in. I think most people would grant there are underlying patterns but there are just so many fac

I think this is where the question of “what is TA really” comes in. I think most people would grant there are underlying patterns but there are just so many factors and they are dynamic. Whether the patterns are discernible or not is another matter but in theory if they exist they are be chartable in some form.