Phew. I'm on chapter nine, but I get the message.
I wrote that opinion piece in 15 minutes having, as I do, a life. I bow to Prof. Tench's superior knowledge of the water industry since, clearly, he works for it and I do not.
However, the central message of my piece was that I would endorse any licence levy which paid for the science angling needs to fight its battles - battles that angling traditionally fights with anecdote and emotion.
Regarding abstraction, I was not referring, as he suggests, to the Avon catchment, etc, but to the chalkstreams and other watercourses, like those in Hertfordshire, which once supported fishing syndicates and could now not sustain a pond-dipping club.
Prof. Tench conveniently shelves the subject of phthalate pollution. These oestrogenic chemicals have, it is believed, led to a situation in which on my local River Nene meant that 100% of all fish caught in a netting survey proved infertile; this is serious issue, and one which is not being addressed by legislation against phthalate use.
I will endeavour to read the remaining 18 chapters recounting the slightly dull history of water management, but I remain, as will many FM readers, true to the suggestion that angling was better when we could catch 20lb of roach from the river than it is when we can only catch 10lb. Something is wrong, and no amount of obfuscation no matter how well-wrapped in words, will alter that opinion.
If only, as I said originally, angling had the science to discover why...