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Submission + - BFS: What the Textbook Says and What It Looks Like Running (rebraining.org)

fishbowl writes: A working lecture on breadth-first search, anchored to a real implementation — 22 lines of JavaScript from a single-file browser hex game. Walks through why every line is there and how you might have arrived at it yourself. Python and Java equivalents included. Cormen is waiting when you want it.

Comment Re:Illegal? (Score 5, Informative) 28

Just answering your literal question rather than advocating for whether this is right or wrong:

The 1936 Robinson-Patman Act "prohibits price discrimination, preventing sellers from charging different prices to different buyers for goods of 'like grade and quality' if it harms competition."

It's extremely rarely enforced, but ... there you go. You can read more at https://en.wikipedia.org/wiki/...

Comment Re:Unsportsman-like conduct .. (Score 2) 47

That's been asked once or twice with no answer, so I'll give it a shot.

Context: I'm a relatively new (~20 months) POGO player, currently level 75/80, with 34 platinum medals (you need 50 to get to the top level, 80). That probably makes me knowledgeable, but not entirely an expert.

The thing that has made POGO so successful, I think, is that "gameplay" is really broad -- there are a bunch of game mechanics in the game, and you can progress while specializing in some and ignoring others. You want to go out and spin pokestops and find new gyms? You totally can! You want to stay home, do remote raids, and remote PVP? You totally can!

I'm really not a PVP person, I kinda hate PVP in all games, but that's just me. Others really love PVP in general, and some of them love PVP in POGO. So a POGO tournament could literally take place in a basement, away from any pokestops or gyms, because you could just PVP against each other (Heck, if you didn't have to worry about cheating, you could have PVP tournaments involving players coming in from their own individual basements across the world).

Comment Re:My home network is nearly pure IPv6 (Score 1) 73

To me the hoops that smoothbrains will jump through to avoid IPv6 and stay on legacy IPv4, especially when hosting, is pathetic. NAT, port forwarding, tunnels, blah blah blah blah.

I have something like ~1.2 trillion times the number of routable addresses that the entire IPv4 space has. Not all are reachable, of course, just the services that need incoming access and they're each on their own isolated DMZ.

Comment My home network is nearly pure IPv6 (Score 1) 73

Started the move about 18 months ago when I decided to get off my lazy ass. My ISP gives out a /56 prefix, so that lets me run 256 /64 subnets/VLANs in the house, currently there are ~10 in use. Everything get a GUA through SLAAC and I use RAs (Router Advertisements) to give ULAs to everything. Any external facing services get their own VLAN and /64 for the system(s) as needed. Firewall blocks all incoming as they usually do by default and I punch a hole for the external-facing systems. They can't reach back into the network, they only answer the phone. All the systems update DNS dynamically if the prefix or full address ever change.

I have an SSH bastion set up. In all this time there has not been a single SSH attempt from the internet. On IPv4 it was constant background noice.
For those legacy IPv4-only systems on the internet, I set up NAT64. I have an IoT VLAN and IoT 2.4 GHz wireless network that are only IPv4 because a lot of IoT network stacks are junk.

I'm still farting around with it, but man oh man, there's no way I'd go back to IPv4. It was one of the best moves I've done in ages.

Comment Torn on this (Score 1) 97

Concerned that the reason we keep doing open source is because we believe in access.
The false tradeoff there, is believing that access and exploitation are necessary corollaries. And I don't think they are.
It's a tough balance, and open source licenses have clearly failed us here.
But I'm not sure where to go with it. Shared source might be better, like the Mongo license, or something like it. The Kimi2 license had the right idea.
On the other hand, when you leave the open source path, you pay by losing access.

Comment Re: It will flop (Score 1) 26

Good point, and I'm not here to argue with you -- the problem when we talk about Costco is the Wing drone's max capacity of 5lbs. That's not a Costco trip -- that's barely a trip to a Costco food court :).

5lbs feels like not enough to really replace most trips to actually stock your groceries, unless you break up your shopping trip into multiple delivery flights. It's much better for impromptu consumption (though that said, I feel like most of my trips to the local hardware store are "oh crap, I need this one thing ... " which would be under 5lbs)

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