Aug. 19th, 2018

walkitout: (Default)
https://www.bostonglobe.com/magazine/2018/08/15/come-back-cash-before-too-late/cYvupyWhCjRX3jXJSjv2cO/story.html

Swidey includes the usual goldbuggery (yeah, I know this isn’t about gold, but the language is identical: what if a power outage, what if hacking, cash is real, you can touch it, etc.). That’s sort of boring. He argues that cash is cool — and then quotes a bunch of mobster related movie stuff, and some things involving gas stations and rolls of green paper that make me immediately suspect someone isn’t reporting all of the revenue to the tax authorities. Nowhere in the article does he discuss tax evasion. He does discuss crime, and discounts it, but as near as I can tell, neither he, nor Ou (wow, that’s _twice_ she’s crossed my attention in the last week with some screwball idea) seems to want to talk about the revenue agents.

Look, it is super easy to not report income that appears as cash: he got paid as a teenager (same age as me, apparently) picking something or other in an orchard, in cash and it looks like it wasn’t reported; tips paid in cash are rarely reported (which is why the IRS imputed a certain minimum), and a bunch of domestic occupations (cleaning, child care) are characterized by under reported payments. In cash. I mean, a lot of times people write checks, which as near as I can tell, is outside of the author’s awareness as a payment method anymore, altho it surely must be a possibility for a subscription at the Globe? Attracting that non payment card service fee he is all sad about?

In the end, however, falling short of pesos in Cuba on a family vacation convinced me that actually the option of payment cards is pretty awesome.

Yes, yes it really is.

There are lots of places — Germany arises in the article — where cash payment is still really common, and, outside of tourist areas, kind of hard to avoid. I don’t typically go to Germany, but I have been to the Netherlands several times. I’ve wound up trying to buy things in payment card only places (I wanted some Nobbeltje at the ferry terminal), and failing because it was payment card only AND they weren’t taking US cards. Nice! We had plenty of US cash, however, and the nice gentleman there actually pulled out his personal payment card to run the charge for us and then accepted exact change.

Having multiple payment options is important, and has _always_ been important, anywhere that business is transacted. Period. Getting rid of one is not something to do lightly, altho we have (try paying in gold. Yeah, that just does not work) (and it is uncommon to pay “in kind” or in equivalent livestock and so forth, in the US anyway). It is reasonable to point out to people who have minimized down to one or a few payment cards that having an additional payment method available increases their options when their one payment is not accepted.

But it isn’t a moral choice. It’s a pragmatic one.

ETA: I did not address his arguments about how people spent more with payment cards than they would with cash. This was probably a real phenomenon with people older than the author and me, the first adopters of payment cards who had a particular budgeting style. It is not a real phenomenon with people younger than the author and me, who have grown up with a radically different style of budgeting. People around our age can go either way, finding trouble a la those born earlier, or avoiding it a la those who came along later, depending on which style we went with. If we have a spend-till-its-gone-then-wait-for-more, payment cards are a disaster. If we have a monitor-the-total-and-keep-it-within-a-certain-range, we’re fine, and with easy access and alerts set up, far better off in terms of avoiding fraud and loss.

Swidey also does not delve into the various loss risks beyond over-spending. The way he characterizes debit cards as having fewer protections built in suggests he has never thought them through.
walkitout: (Default)
https://arstechnica.com/information-technology/2018/08/just-say-no-wi-fi-enabled-appliance-botnet-could-bring-power-grid-to-its-knees/

For all your Worrying About Whether I Should Worry About That needs!

The comments section is particularly entertaining.

Observations conspicuously missing from the discussion: it’s actually pretty easy to match solar panel installation to AC installation in a way that more than compensates for the additional load. If you need AC, you probably have sunshine to collect.

I’m betting Poland’s grid — especially back in 2008, which is when they modeled this — is kinda dodgy, compared to ours, say. Not to pick on Poland, but they’ve had a lot of development catchup to do in the last few decades post Soviet years.

What is this about: could internet connected smart home devices be manipulated en masse by bad actors — Stuxnet style, botnet style — to take down the grid for a large region / country? The idea would be to get a lot of something with a substantial initial load (a water heater, a fridge) to power on in its high power draw mode simultaneously. And possibly do so again as the grid was being restarted to keep it down. There is some debate about whether the scenario is plausible (I don’t think it is particularly plausible in the US, altho not necessarily for the reasons given. How many people have really IoT’d their fridge and/or water heater in a way that would let you hack in and start them all at the same time?). However, in classic geek curmudgeon way, many of the commenters were opposed to all progress in this area, and express consternation that anyone wants any of this new fangled stuff at all.

Ah, comp.risks. I miss the days when I still got worked up about this sort of thing. No more! I actually have a lot of faith in our ability to not just invent stupid shit that people can abuse to cause problem, but to then identify the abusive idiots, throw them in jail, and put some additional safety protocols in place to make it a lot harder for the abusers to abuse.

Look. We still have fire alarms that can be pulled in any public building. Any idiot can pull them. And yet, we have taught a whole lot of low impulse control, bad actors with emotional lability not to do that more than once or twice. I’m pretty sure we’ve got this one.

ETA:

Here’s the paper:

https://arxiv.org/pdf/1808.03826.pdf

The comments included a mention of spinning reserve. R. noted that Very Large Batteries would also be protective. Both are mentioned in the actual paper. I’ve bogged down horribly in section 5, alas.

I haven’t finished, but it does seem like one way around this is to require anything with enough smarts to be manipulated into a Biggest Load state from afar, in a way that lots of them doing that at once would be a problem for the grid, should have the capacity to politely ask whether it is okay to go to its Biggest Load state, thus permitting a grid operator to say, um, no, and create an exponential backoff for requests to deal with the obvious next degenerate case.

Thus, refrigerators and water heaters would start to behave like annoying desktop computers: taking an interminable amount of time to reboot. But, you know, we’re increasingly used to that, right?

Also, that would protect against a lot more than just Bad Actors.

Altho, I’m starting to wonder if I somehow got the wrong paper. Because this doesn’t match the Ars coverage in a lot of salient details.

Yep. Same authors.

https://www.usenix.org/system/files/conference/usenixsecurity18/sec18-soltan.pdf

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