• 0 Posts
  • 62 Comments
Joined 1 year ago
cake
Cake day: June 29th, 2023

help-circle



  • I’m going to start out with the obvious- that most of these arguments are copypasta from a decade and a half ago when smartphones got cameras. Distracting. What about the gym? Easy for bad actors to abuse (OMGWTFBBQ!)

    The glare from headlights comment was weird. Do the lenses not include an AR coating, or perhaps the author doesn’t normally wear glasses? I decided to check on that last one and was surprised that there was no by line, just a generic nyt link - not even to the article. Of course Brian X Chen appears to be a real NYT journalist, but in no other online pictures does he wear glasses, so I presume he doesn’t wear corrective lenses or he wears contacts. Not too surprising then that the glasses - and a big, black, fat-rimmed resin model at that - would be distracting, even outside of the decisions to record or not.

    Which brings up the last bit - to record you have to initiate it. I presume this is for battery life, as powering the sensor, processing, and transmission to a storage device all take non-trivial amounts of power for a device that small. For the panicky fear of constant surveillance the article has I expected it was an always-on live-stream to the Meta servers that was occurring. Color me unimpressed.


  • Since even inadvertent or unintentional copying can be punished as infringement, any takedown should be subject to the same level of scrutiny and false claims should be awarded statutory damages matching infringement of registered works, collectible by the party who’s non-infringing work was blocked, but actionable by any party who is denied access. So if you can’t get to content due to DMCA you can sue, but you cannot recover damages or expenses - if you win, the $175k(?) per fraudulent take down is payable to the content owner. In that way, it’s recognized that an individual looking for content is injured by the takedown, but there is no financial incentive for take-down vigilantism.



  • I won’t argue that AI won’t solve the housing problem. And I agree that we can build a bunch of housing. But it won’t be where people want to live, or it won’t be affordable. I’ve got people in my town screaming for affordable housing. Even with subsidies its hard to get things going when the local municipality is practically bending over backwards. Why? Because it has to be on a bus line. It has to be within walking distance of X services. And all the land that fits those criteria is millions of dollars an acre. Even if you could find them, the contractors can’t find enough qualified, reliable workers at premium rates to service their million dollar home builds. I’m in the industry and I don’t care how much “will power” you have; short of taking land through eminent domain and using it for free, you won’t have anyplace that meets any kind of criteria for livability. Hell, I could go buy 1000 acres just an hour down the road for $1M and put up 10,000 houses that only cost $50k each to build. Thing is, nobody is going to buy them. There is literally no demand, even for cheap housing, that takes an hour drive to get anywhere useful - and if you get closer in, you won’t find land that’s affordable. Heck, by the time I extended infrastructure to them or built it out, it would be 3-4 years before the first resident could move in, and that’s with zero delay on any governmental paperwork.








  • Again, it would take a substantial change to the code or reality. The options are to change the block size (more transactions per block), alter the difficulty curve (which is intended to limit growth in the limited bitcoin supply), alter the way blocks are solved (massive theoretical mathematical breakthrough or, possibly, a move from asic to quantum computing), or switch away from proof of work. The first increases the storage of the blockchain (substantially for a substantial reduction), rewrite - and get approval - to change the difficulty steps which had been a hallmark of the system, the third is magical thinking, and the fourth completely undermines the egalitarian ethos of the coin.

    I’ve heard of no substantive move on any front to alter the plan because, for now, it working. And the true believers are generally libertarians who have faith that market forces will correct any shortcomings organically. This usually results in everything working perfectly right up until it doesn’t, at which point the wheels come off and the bus slams into the class of kindergarteners crossing the road.


  • You can’t have a transaction without mining. Mining is the work done to solve a batch of transactions, so the exact cost of a transaction is easy to determine provided that you don’t include the cost of plant (buildings and IT to run the miners, though this is usually very minor compared to the actual calculation consumption). Each block contains (typically) between 3000 and 4000 transactions and is solved every 10 minutes. As of today, it takes 2.6GWh to solve a block, given the current number of miners (137TWh/yr per https://digiconomist.net/bitcoin-energy-consumption), which is 744kWh per transaction at 3500 transactions per block.

    The cost of a Visa transaction is more difficult because there are people involved and other plant costs (buildings to house the people who work for Visa). The actual cost to process a Visa transaction, in direct transactional power usage, is trivial because a Raspberry Pi can “process” hundreds of thousands of transactions a second locally - it’s literally a couple hundred bytes of login/query/reply data, and adding or subtracting from a ledger which is mirrored to distributed servers. Distributed across a server with enough transactions to keep it busy it’s probably a few hundred milliseconds on 1/8 of a 50W processor - call it 0.001Wh at the server, which is the equivalent of the 700kWh per bitcoin transaction. If we say that there are 10 machines all doing the same virtual transaction on each physical transaction (incl. POS, backup, billing, etc) and we figure a 5:1 cost of total power (a/c, losses, memory, storage) then we’re all the way up to 0.00005kWh (0.05 Wh, or 180 watt-seconds) per transaction. That means that the overall cost for visa to process your charge is 1.5kWh/0.00005kWh for the computers or 30,000:1 due to humans being involved in the process.

    Here’s the thing, though: Bitcoin gets harder (more compute intensive) as time goes on, and the rate of increase is faster than the ability to solve, on a Wh basis. IE - Bitcoin transactions will get more expensive over time unless bitcoin changes their code - and there is always resistance to that because there is a financial disincentive to reduce the work in Proof of Work systems. This is mitigated on other blockchains by using Proof of Stake, but that has other implications. Visa, otoh, is taking advantage of AI and drops in processor and storage costs to lower their per-transaction cost because there is a financial incentive to reduce processing costs as the fees charged are fixed (nominally 3% of the transaction cost) and anything left over is profit.



  • May I suggest Concepts? In over a decade of searching for a pencil-on-paper analog, it’s as close as I’ve found and it’s dropped my paper usage from over 1000 sheets a year to under 50. There’s a $10 (one time) cost for pdf import and export. The canvas is “infinite” but you can import a PSF of your favorite note-taking sheet, with or without guide lines/grid (or use the apps customizable grid), and copy it about the space. Then, when exporting, export just the PDF areas (The sheets/outlines you imported) into a single, paginated PDF file.

    It’s available for iOS, android, and windows, though the three versions do not have synchronized feature and the files are incompatible across platforms (for now, at least). There are other paid add-ons, but I’ve not found them necessary or useful for note taking.