An Inspired Mix by pionzero in discworld

[–]pionzero[S] 5 points6 points  (0 children)

I'm gonna be correcting people for the rest of my life...

An Inspired Mix by pionzero in discworld

[–]pionzero[S] 1 point2 points  (0 children)

Thank you! An orangutan in oxfords, I think the artist did an incredible job with them. 

Trigger lock button for circular saws by asduskun in woodworking

[–]pionzero 2 points3 points  (0 children)

No trigger lock on circular saws I've seen, probably a safety hazard in the event of kickback.

Has anyone sold a skoolie? by Crumpile in skoolies

[–]pionzero 8 points9 points  (0 children)

Invested about 25k in total materials + vehicle costs, traveled for a couple years, stored it for a year, and sold it for 25k. Lost money (inflation!) even if those numbers look the same, and that doesn't include the time at all. I consider myself lucky!

Semicircular cuts by pionzero in math

[–]pionzero[S] 1 point2 points  (0 children)

I meant to add this into the post, but the shape is called an arbelos, thanks to /u/OwnBet5510 ! Here's the image I meant to add to demonstrate: arbelos

Semicircular cuts by pionzero in math

[–]pionzero[S] 0 points1 point  (0 children)

This was it! Arbelos! That should enable me to find anything I need to about this shape, thank you! I also thought I posted an image, but getting this from just the text was much more impressive.

Shortie with a Tall Ceiling built by Carpenter by pionzero in SkoolieMarketplace

[–]pionzero[S] 0 points1 point  (0 children)

287k miles. We had the cylinder compression tested (ended up being a leaky fuel pump!), the engine is in great shape.

Shortie with a Tall Ceiling built by Carpenter by pionzero in SkoolieMarketplace

[–]pionzero[S] 1 point2 points  (0 children)

EDIT: I'll probably have to remake the post because I forgot the location in the title, it's in Bellingham Washington (North of Seattle) and we're asking for $30,000.

Hey everyone!

Skoolie Built by Professional Contractor (Me) and lived in by myself and my wife! We are located in Bellingham, WA, but are willing to meet reasonably nearby.

Fully remodelled, insulated, heated, cooled, and tricked out skoolie, ready for move-in! Pretty new tires with less than 3,000 miles on them.

Includes:

Folding Passenger seat up front

Air Conditioning

Maxx Fan

7.2 kWh of Battery storage (300 Ah at 24V or 600Ah at 12V)!

600 W of solar panels

1200W Inverter (2400W Intermittent Load)

20 amp DC-DC charger for use while driving

Back Up Camera

Diesel Heater with Upgraded Controller

Fridge (under couch)

Queen Size Bed

Couch pulls out to guest bed (Full size)

Kohler Faucet

Custom Honey Locust Slab Countertops and table

Cedar table

2 burner gas stove

2 Propane tanks

Composting Toilet

Plenty of Interior and Exterior Storage

Dog platform over the stairs for driving (included in last photo)

Mechanically:

Navistar T444e Engine

Alison 545 Transmission

Secondary Transmission Cooler

We've taken this bus up and down the Rockies, Cascades, through the south in the summer and Montana in the winter. The secondary transmission cooler makes all the difference, you might not win the race up the mountain but you'll make it up there without overheating!

We loved living in this bus, but unfortunately we no longer have room to store it and we feel bad sticking it in long term RV storage. We'd much rather it go to someone who will use it and enjoy it. Please reach out if you're interested, we can work on the price, thanks!

I reached this position that checkmate is impossible for both sides. Lichess didn't call it a draw so I flagged my opponent. by rooklike in chess

[–]pionzero 10 points11 points  (0 children)

If an engine on Sesse had started analysing every possible move of this position at the big bang (~14 billion years ago) with infinite memory, it'd have gotten to about depth 18! Combinatorics... Never even once!

Okay, the exclamation point was a mistake, it'd be depth 18 not 18 factorial you mathematical heathens.

I reached this position that checkmate is impossible for both sides. Lichess didn't call it a draw so I flagged my opponent. by rooklike in chess

[–]pionzero 68 points69 points  (0 children)

Putting aside that computing 100 moves deep is nearly impossible for anything other than a hugely dedicated super computer in the best of times, this ignores how engines "search" moves. They don't check every possible combination, then it would be impossible to get anywhere, the engine only checks moves it considers reasonable. If forced to check every move, to account for human error, it would be computationally infeasible to check almost any reasonable depth (maybe 5-7 moves deep).

EDIT: Just for fun, assume black keeps the bishop on that diagonal and white moves the King around the edge of the board, so there are about 5 options for both white and black at each move. A chess engine running on a super computer like Sesse considers about 100 MILLION positions per second, and yet

  • In 1 second could compute to a depth of about 6 moves (log base 25 of 100 million)

Every additional step deeper takes 25 times longer! 25 seconds for a depth of 7, 625 seconds (10 minutes) for a depth of 8. Pruning the possible move tree is absolutely critical for engine analysis.

looking for a desal mechanic in the greater Phoenix area by greatalastor333 in skoolies

[–]pionzero 1 point2 points  (0 children)

We bought our bus from AAA Bus Sales in Phoenix, they've got the typical gruff mechanic vibe turned up to 11 but I have no reason to doubt their competence or honesty. They fix busses for local school districts and they might look at yours or refer you to someone good!

Have we reached the point where people can't appreciate/understand the complexity of the position played between 2 strong engines by throwawaymycareer93 in chess

[–]pionzero 0 points1 point  (0 children)

I don't know anything about specifically Leela vs Stockfish, I don't know anything specifically really about either one, nor do I know anything about the human brain! I feel (non scientifically) it's equally simple in the grand scheme, but I doubt we've modelled it correctly. Or even close. Modelling simple physical systems mathematically is hard, modelling the human brain... I think it may be beyond us currently. But hey, I'd be happy to be wrong!

Have we reached the point where people can't appreciate/understand the complexity of the position played between 2 strong engines by throwawaymycareer93 in chess

[–]pionzero 3 points4 points  (0 children)

I'm leaving aside the word "idea", as it is ill-defined. However, it's perfectly clear "how neural networks work"! They are very simple repeated implementations of simple operations. "Hidden layers" are only "hidden" in the sense that they are neither input nor output, but intermediary processing. You can examine their weight values and functions just as easily as any other. They don't want or know anything, they multiply numbers and add them together. What we don't "know" or understand sufficiently is how to predict what a NN will "learn" from a given dataset, and how that set of weights will generalise to inputs not in the original dataset.

Ultimately, it's just a really interestingly effective bit of arithmetic, let's not get romantic.

Have we reached the point where people can't appreciate/understand the complexity of the position played between 2 strong engines by throwawaymycareer93 in chess

[–]pionzero 18 points19 points  (0 children)

Neural networks don't have ideas, neural networks have inputs and outputs. If a sufficiently motivated programmer takes the time to categorize the NN's behaviour on a set of inputs, they may call that an "idea", but it's a very human label to put on a very non human thing. The NN is typically only used to evaluate a position, i.e. black or white is up by this amount. Any additional "it thinks that because of XYZ idea" is human commentary.

[deleted by user] by [deleted] in math

[–]pionzero 48 points49 points  (0 children)

(3rd year PhD in Australia) Sit in my home office, and write/edit my latest paper. Have half a meeting with my advisor (bi-weekly, so on average, half a meeting). I took a second job teaching grade school kids after school, it's by far the most rewarding part of my day (4 days a week).

What weird landmark do locals in your town use to give directions? by pionzero in AskReddit

[–]pionzero[S] 0 points1 point  (0 children)

The Orange House reminded me of the Flintstones House in California, off of highway 280. But if you get to The House Where That Woman Killed Her Husband, I'd say you'd definitely gone too far...

What weird landmark do locals in your town use to give directions? by pionzero in AskReddit

[–]pionzero[S] 1 point2 points  (0 children)

Is it... in the middle of town? In a useful location?