As for collaboration - I have done a lot, 26 books, and found publishers increasingly resistive to them. It's not that the books are bad; editors won't even read them. ↗
I do one Xanth novel a year, because at the moment that is all that publishers will accept; they don't want any other type of fiction from me, so Xanth pays my way. ↗
My assignment was exclusively in the research field, and my first published paper, On the Optimal Use of Winds for Flight Planning, was the outgrowth of that work. ↗
Publishing a protocol under the name Atom that tries to capture all of the prior art in this stage and might provide a good basis for winding down the syndication wars. ↗
Magic came very easy for me when I was a kid. When I was 8 years old I started doing it, and by the time I was 12, I was already published in magic books. ↗
To think that we as a publisher (i.e. people who have never actually MADE a game) can have a realistic impact on a project that a team of experts is slaving away on full time for 2 years is a bit arrogant. ↗
Of the first seven novels I wrote, numbers four and five were published. Numbers one, two, three, six, and seven, have never seen the light of day... and rightly so. ↗