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Comment Re:Use it or lose it (Score 2) 118

I've just started teaching math. The students reach for the calculator IMMEDIATELY.

I asked what "half times a half" was, expecting a quick and obvious answer. I got guesses. "Is it zero?" "One!" "I hate fractions!"

Converting percentages to decimals is also atrocious. "What's 5% as a decimal?" "0.5?"

13 and 3/4 as a percentage was the next confusion.... was it 0.1334?

These students are 15-16 years old. I think we lost something along the way when the tool wasn't being used just to automate what we already knew, and it became a way to do the thing we really *should* know.

I mean, you could argue that no one needs to understand numbers because computers do, but I would hard disagree. I see a similar argument for AI, and if all code is generated by machines, well it could go either way: either all code is perfect, or when the code IS bad, few people will understand *why* it's not working and will just twiddle their thumbs waiting for an update. We'll get cookie cutter crap, and live in an Idiocracy style society.

Anyway, just weighing in on the "calculators will rot our brains" part, because from what I've been seeing, they really have, and I wouldn't have believed it either until now.

Comment Re:Piece of crap book PC (Score 1) 28

I run an N100 as my daily driver - don't be fooled by the specs, these are VERY capable machines. I don't know what you consider "heavy browsing" but mine keeps up with everything I need it to do. You're right about the gaming part, but considering that games are mostly just interactive stories for drooling idiots that require ever-increasing hardware just to render a world that we used to use our imaginations for in books, I don't consider that a negative.

The best way to be productive is to not have a gaming capable machine. It's amazing what else you can do with your time apart from click an enemy and feel like you accomplished something. Spoiler: Clicking a mouse is not a skill.

Comment Re: Weed too? (Score 1) 241

A pack of 20 cigarettes here in NZ costs about $40NZD. That's ~$5NZD worth of cigarettes and $35 of combined tobacco excise tax and 15% sales tax (GST).

For reference, 91 octane petrol is $2.35/L, and a Big Mac is ~$7NZD

Yet people still smoke.

Only 6 years ago they were half the price. I think there was a staggered increase over a number of years (every January the price increased), which has finally stopped, and so this is the next step to becoming "smoke free".

Comment Re:Bullshit (Score 2) 108

If you're using Nicehash as an argument for "Bitcoin mining being done on GPUs" - that's not the case. Nicehash typically has ETH miners, getting paid in BTC. You can make the implication that you're mining, and getting BTC for it, but it's not Bitcoin mining. You're not doing anything with the Bitcoin blockchain/network, apart from getting paid in BTC.

Comment Re:BTC - environmental catastrophe (Score 1) 68

Think of all the electricity wasted by all the GPUs in the world that _aren't_ mining Bitcoin. Merely showing textured 3d models to gamers.

The gaming community either needs to rapidly move to shitty integrated graphics as we used to, or be abandoned by all with any shred of environmental concern.

Comment Re: Whatever your opinion, it is interesting. (Score 0) 123

Bitcoin transactions currently take an average of 10 minutes, while only processing an average of 5 per second.

It's already incredibly, unusably slow, and there's every reason to believe it will scale very poorly.

I think 10 minutes is the maximum (assuming normal fees), not the "average".

I've sent BTC that takes a few seconds, but shows as unconfirmed. If you're buying a cup of coffee, you can walk away. If you're buying a Lamborghini, you can afford to wait up to 10 minutes for it to be confirmed.

Have you actually tried sending BTC and watch it appear?

Comment Re:Transaction confirmation time (Score 1) 131

Well interpret it how you wish. Use Bitcoin if you want, otherwise don't. It works for me. All I'm saying is you don't need to wait for minutes/hours to see the money come through, and eventually it changes status from "Unconfirmed" to "Confirmed", but in practice they seem to be the same thing. The BTC leaves your wallet straight away, so double spending is not possible, although feel free to prove me wrong.

Comment Re:Transaction confirmation time (Score 0) 131

I can send BTC to people and it appears as an "unconfirmed" transaction within about 10 seconds usually (I *think* once it appears in the mempool?). Your transaction doesn't need to be "mined" into a 10 minute block before it appears in wallets, which for most people is good enough, since it's impractical (I won't say impossible) to reverse/cancel a transaction. There are ways if you opted for a reversible transaction (RBF - Replace By Fee) in the first place, and it costs you BTC to do this.

But if you're buying a coffee for a few satoshis, a few seconds and little risk to the vendor is probably "good enough".

Try using it before you make false statements.

Books

Submission + - After Books Go Extinct

Hugh Pickens writes writes: "Books are on their way to extinction writes Kevin Kelly, adding that we are in a special moment when paper books are plentiful and cheap that will not last beyond the end of this century. "It seems hard to believe now, but within a few generations, seeing a actual paper book will be as rare for most people as seeing an actual lion." But a prudent society keeps at least one specimen of all it makes, so Brewster Kahle, the founder of the Internet Archive, has decided that we should keep a copy of every book that Google and Amazon scan so that somewhere in the world there was at least one physical copy to represent the millions of digital copies so if anyone ever wondered if the digital book's text had become corrupted or altered, they could refer back to the physical book that was archived somewhere safe. The books are being stored in cardboard boxes, stacked five high on a pallet wrapped in plastic, stored 40,000 strong in a shipping container, inside a metal warehouse on a dead-end industrial street near the railroad tracks in Richmond California. In this nondescript and "nothing valuable here" building, Kahle hopes to house 10 million books — about the contents of a world-class university library. "It still amazes me that after 20 years the only publicly available back up of the internet is the privately funded Internet Archive. The only broad archive of television and radio broadcasts is the same organization," writes Kelly. "They are now backing up the backups of books. Someday we'll realize the precocious wisdom of it all and Brewster Kahle will be seen as a hero.""

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