The problem with the title of Chapter 4 being a hint to the solve of Chapter 1 is that there were originally 10 chapters. He only chopped it into 4 and 6 because of Covid restrictions keeping him from hiding all 10. So if your theory is correct, 4 should hold a clue to the method of 5 which we haven't seen yet.
Yeah, I considered that too. Like mentioned, it would have been pretty easy to shift them around, but maybe it still DOES refer to Chapter 5 or even a different chapter. I have a sneaky suspicion that it'll all be a little clearer on Tuesday.
Just my two cents on the subject. Slowly i turned i felt like it was refering to a record player, one hit wonders... chapter two chicken dinner... tiny wings...
I thought exactly the same about "chicken dinner" and "tiny wings".
For chapter one, "Ladies and Gentlemen" made me immediately think of "Ladies and Gentlemen, start your engines!" Perhaps a reference to the vehicles being part of the solution or maybe the highways they drive on. Then there is "It's a Treasure Hunt" in the title with the chapter calling out that "treasure hunt" are the key words as well as the Benefactor calling it the "Great American Treasure Hunt" rather than "U.S." (though that could've just been a slip up in editing, I guess).