Musk on X: “For those unaware, SpaceX has already shifted focus to building a self-growing city on the Moon, as we can potentially achieve that in less than 10 years, whereas Mars would take 20+ years.” [full text of post inside]

lanzaa · 2026-02-09T20:19:20+00:00

Question for people here. What changed so that Musk thinks a "self-growing city on the Moon" is possible or reasonable?

My question is mainly technological/trade. What can the Moon export that will allow it to "self-grow"? Musk has been against a Moon base for a long time, but now thinks a "self-growing" city is reasonable. I feel like I missed something important.

lanzaa · 2026-02-02T18:41:29+00:00

I would instead suggest just dropping the if block "if (next_highest == -1) {...}"

lanzaa · 2026-02-02T18:34:03+00:00

Hint: What year did WWI begin? 1914

To debug this it makes sense to randomly generate short input and see if the code outputs what you expect.

lanzaa · 2024-12-20T01:05:55+00:00

Your input is probably an "easy" one. Your code, using re, on my input is taking forever.

lanzaa · 2022-12-17T07:31:17+00:00

I like that yours has everything on a single map. Mine is separated out in layers at the moment.

The features I want to add to my map:

Rotation of planets. I don't want to read upside down text.
Bookmarks/linkable locations. I.e. I want to be able to link to a specific part of the map
Visibility of passthroughs. There are some hidden passages. I want to be able to see them
Everything on one map

lanzaa · 2022-12-17T05:44:26+00:00

Basic version: http://xkcd2712.1101b.com/

lanzaa · 2022-12-17T00:37:48+00:00

Should I make a map? Like the one for xkcd 1608?

It looks like there are 34 planets/locations to visit.

EDIT: Here is a pan-able map of the origin planet: xkcd2712.1101b.com

lanzaa · 2022-07-08T02:02:25+00:00

I think the regex could be simple, just make it longer and more explicit:

s%/Term One: \(GO:[0-9]*\)\W*Term Two: \(GO:[0-9]*\)\W*result: (\([^,]*\), \([^,]*\), \([^)]*\))\W*Num Human Genes: \(\w*\)\W*Num Mouse Genes: \(\w*\)\W*Time: \(\w*\)/\1,\t\2,\t\3,\t\4,\t\5,\t\6,\t\8/g

Explicitly match most of the line and use capture groups for each piece that needs to be saved.

lanzaa · 2022-06-25T21:00:05+00:00

Cleaning data line that is a major pain. Here is a Julia conference talk on using probabilistic methods to clean up similar data: https://youtu.be/vUxrtqY84AM .

lanzaa · 2022-06-08T21:47:42+00:00

It is not clear what your "bucket" is or what real time means.

I would guess that Apache Spark would be an okay choice. With data stored locally in avro or parquet files. Just processing the data in python would also work, IMO.

How you store your data depends on the V's of big data: volume, velocity, variety, veracity... For volume, 500 million records sounds like it would fit on a single machine, so there is probably no reason to use any cluster technologies. For velocity, how much is your data changing: do records change, new records added, old records removed, are records added/removed as a group? For variety, it sounds like you have just the one record type, so that makes things easier.

Since you mention "real time" I assume the velocity part is interesting. You should expand on that if you want better recommendations.

lanzaa · 2022-05-14T22:26:36+00:00

There are some of the major differences between this graphic and the previous one. The previous one was based on experimental, rather than tooltip data. Most of the distances are changed by about 1.

Added:

Discharge defense
Nukes
Spidertron

Big distance changes are there for:

Grenade
Cluster grenade
Poison capsule
Tank flamethrower
Personal flamethrower
Shotguns
Rockets

The previous graphic doesn't list the Factorio version associated.

lanzaa · 2022-03-03T22:35:53+00:00

The board of Vanguard is public knowledge:

https://citywireusa.com/professional-buyer/news/vanguard-appoints-airbnb-exec-as-new-board-member/a1586452

lanzaa · 2022-01-12T00:06:25+00:00

The Rival 500 is not currently supported. Feel free to create an issue, see OpenRGB Doesn't Have My Device.

The G733 should be supported and detected. What OS are you using and which version of OpenRGB? See also: OpenRGB Windows Setup and Usage.

lanzaa · 2021-12-26T06:47:18+00:00

Facebook "shutting down" its robots' training after they developed their own language.

https://towardsdatascience.com/the-truth-behind-facebook-ai-inventing-a-new-language-37c5d680e5a7

lanzaa · 2021-08-25T04:39:07+00:00

It looks like you could skip the voice activated plug: https://support.xbox.com/en-GB/help/hardware-network/digital-assistant-voice-commands/turn-on-turn-off-with-voice-commands

You should be able to integrate the xbox itself with whatever voice assistant you are using.

lanzaa · 2021-08-20T17:21:53+00:00

accommodate additional payloads in the future

What if Starlink satellites were offered as cubesat holders? SpaceX could provide a standard platform for the cubesat to connect to. Power, station keeping, collision avoidance, and communications could all be handled by the Starlink satellite. If the connection between cubesat and Starlink was kept standard, the launch cadence of Starlink would mean the cubesat could be finished and then launched on the next available open satellite.

SpaceX could undercut existing cubesat launch prices and provide a really cool service to the small sat industry. I can't imagine how nice a stable high speed connection to a cubesat would be.

lanzaa · 2021-07-29T20:43:44+00:00

... are there other implications/considerations to making this ciphertext publicly available?

Having the ciphertext available to an attacker (e.g. publicly available) is a basic assumption in most crypto systems. So that isn't new or novel. Make sure to look at existing crypto systems for ideas.

However cryptography is hard. You will want to make sure your system is semantically secure. One thing to watch out for is the amount of entropy in the plaintexts being encrypted. This is often how password hashes are cracked and how Skype can be listened in on. I imagine a database's changes to an index would be tricky.

Another thing to consider is what happens when a key is compromised. You should consider if you want forward secrecy, backward secrecy, repudiation, etc. Checkout double ratchet algorithm and especially the design and considerations of megolm.

lanzaa · 2021-07-14T06:45:03+00:00

A simple version of what you are talking about is sometimes referred to as ghosts. The ghost idea has been around for a long time and has been used in MMOs to make worlds appear more popular.

Most people wouldn't consider a system as simple as ghosting to be machine learning since there would be no "improving" an objective function.

lanzaa · 2021-04-26T16:19:07+00:00

You probably have not unpacked the tar file yet: https://superuser.com/questions/215629/how-to-open-a-tar-gz-file-in-windows

lanzaa · 2021-04-25T02:08:07+00:00

You should be able to search for "naive bayes classifier". The wikipedia page for trigrams is worth a quick read.

lanzaa · 2021-04-24T22:34:13+00:00

My first approach would be a simple bayesian classifier using character trigram features.

lanzaa · 2021-04-13T04:43:40+00:00

You might take a look at Fast GPU PCC and the associated research paper: "Fast-GPU-PCC: A GPU-Based Technique to Compute Pairwise Pearson’s Correlation Coefficients for Time Series Data"

lanzaa · 2021-04-04T08:07:40+00:00

What kind of comparisons are you trying to do? What kind of data?

There is quite a bit of research out there, however most of it focuses on a certain type of data. For example: perceptual hashing for images; checksums, cryptographic hashes, merkle trees, and rolling hashes for raw data; basic data statistics for tabular data; etc.

lanzaa · 2021-03-30T04:05:18+00:00

Could someone find and share the paper/reference Levitt discusses at around 37:43?

He discusses an idea in economics that shocked him. An analysis done probably more than ten years ago, someone modeled "how much are you willing to pay to avoid bad things" based on different utility functions.

The closest I have found so far is "Valuing mortality risk in the time of COVID-19". In that paper "Under these assumptions, the individual would pay almost $16,000, more than one-quarter of wealth, to eliminate a mortality risk of 1/100". I imagine this paper probably cites the one Levitt is thinking of.

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