To quote the previous event page,
And as far as the next Sunday is concerned : whosoever brings me a set of nine tools of the same kind, such that the durability of one is 1, and of another 2, and of another 3 and so forth until the ninth's 9, will in exchange receive a unique antique version of that tool, of one million durability. This exchange is only available once for each tool type, and only available for mining tools.
To quote some earlier discussion in #bitcoin-assets,
danielpbarron : mircea_popescu> danielpbarron so you actually got the tools for sunday ? << i got 9 axes and 9 hoes and i'm just now working on adzes (which require a slightly different method)
mircea_popescu : prolly should publishe the whole thing monday. it's not a trivial math problem
danielpbarron : it sorta is trivial
mircea_popescu : you got the actual function to select optimal usage/mixage of tools given a set ?
danielpbarron : yes
mircea_popescu : in lisp ?
danielpbarron : no
mircea_popescu : (probably ideal usage of lisp, check me out phf im doing lisp girls coach over here!)
danielpbarron : well i don't have a function; i have a formula. an equation rather.
mircea_popescu : aha. actually this'd prollybe interesting to our very own gabriel_laddel too.
phf : i misread that as "couch", was not surprised
danielpbarron : it took me a day of thinking about it off and on to come up with
mircea_popescu : (the problem, ftr, is : you get a set of tools, with arbitrary durability. you can mix any set (which floor-averages), and decay any individual tool (fixed rate). make a collection of 9 with durabilities from 1 to 9). in practice the mix operation is cheap and the decay operation expensive. so, find optimal path and prove it's optimal. for bonus points, offer preference criterion (would A or B be more beneficial if added to the set)
danielpbarron : i plug in a few numbers into equation, solve for x, paste my macro x-many times, let it run while i do other stuff
mircea_popescu : tis a hack.
danielpbarron : i might not be doing it optimally. but we need the explored resources anyway; it's not like i'm wasting time doing somethign i wouldn't have done otherwise
mircea_popescu : ah not at all. was just going after the math angle of it for a second.
And well... lo! And behold! He got them!
Daniel Barron managed three sets of nine tools, with durabilities from 1 to 9 each. Pretty impressive, if you ask me.
The other tool types (improved adze, hoe and pick, as well as chetty stick) were never claimed. Still, a cool three million in antiques goes to the dedicated gent in the blue threadbare shirt. Congrats!
PS. The mathi part is still open. Got the sexpr ?———
- Math means "without practical value or importance" in this context. [↩]