The book"Lol. No need to get into any deeper discussion of epistemology.
My point is for all our thinking objectivity vs subjectivity the picture is not so clear. How many times has science declared something to be so and a fact and later had to change it's opinion?
In trading we often "think" our system is scientific and objective when it really is less objective than we think.
My point is that regardless of how objective we think our trading systems are they are all somewhat subjective. To some degree, because we all have prior knowledge and any interpretation of data is going to have to be filtered through our present knowledge ...wv..experiences..bias concious, and unconcious. Science has often changed it's opinion. Nearly all forms of interpretation is subject to some sort of subjectivity.
Trading by it's very nature is subjective and cannot be 100% mathmatical or all that we would need is the correct equation or formula and presto we would all be highly successful traders.
I have never read thru parsons book or books and in fact don't recall ever hearing of him until on ET so I don't know about his "surfing" but we once had a dude on here that went by market surfer. I think he wrote a book calked "Beat the Machines." If I recall correctly he like to say market is going to do this and that etc "guaranteed". He often referred to "market drivers" He finally left. In defeat I think.
Beat The Machines: An Investor's Guide To Winning In Today's Financial Markets - by marketsurfer on Booklaunch.io | Booklaunch.io
The man (from 2019)"
David Goodboy’s Palm Beach Hedge Fund Association Hosts Evening with Virgin Group (yahoo.com)
Not a bad gig...if you can't do well in the markets, start some association to "connect hedge funds, private equity firms, investment bankers, and academics." I guess if you network enough over the years, you can do that. Live the good life on Palm Beach and rub shoulders with the rich and famous. He's probably doing better than 99% of ET.