ptrincr

The protocol ensures that there is on average a block produced every 10 minutes.

As hash rates increase, and blocks are found slightly faster, the difficulty is adjusted upwards to ensure that the 1 block per 10 minutes is maintained.

We've seen difficulty drop in the past, it doesn't necessarily rise forever. It only makes sense to increase when it's still profitable to mine at the current difficulty.

If the difficulty rises to a certain level and the price falls, and it becomes unprofitable to mine for some miners, they switch off their rigs and the difficulty adjusts downwards after a period of time to compensate.

Over the years we have seen the price rise and hash optimizations made, which have both driven the difficulty upwards.

This has been an issue for a long time now. There should have been a crash in 2008/2009 but instead the government in the UK decided to prop up house prices with various schemes. I'm not saying this is right or wrong, for many people, house owners and people looking to purchase, this helped people stay out of negative equity/allowed people to purchase their own home.

> By constantly remortgaging, new value is “created” which allows people to have a new kitchen, go on holiday, buy a car, extend their house. But it feels like a trick to me. I’m not an economist, but where’s the wealth creation here?

I'm not sure remortgaging is creating new value. All money is loaned into existence, remortgaging is just creating new debt secured on your home. It still has to be paid back. People could still get loans, just not perhaps at the same favorable rate.

There has been a lot of money printing over the past 10 years or so, I think rising house prices are a natural result of that. I think it's more of a case of decreasing purchasing power of the £ in your pocket, rather than homes rising in value. Have a look at this chart when house prices are compared with gold[0]. It's also a function of the availability of loans, since now you can borrow cheaply over long periods, this increases the total amount people are able to borrow, as it's much easier to service the debt.

What's more surprising to me is that we're not really seeing inflation in other areas of the economy, such as wages or consumer goods. Inflation has been surprising low since the crisis of 2008/2009.

[0] http://pricedingold.com/uk-house-prices/

It uses a 433mhz receiver and picks up temperatures from a couple of commercial temperature sensors, uses pygame to display them to the screen, plus a few bits of other info.

Pretty basic, but it works. It struggles with timings though, which I've discovered is pretty important when receiving and decoding 433 signals. Looking to use a Rasberry Pico instead shortly.

I think this was true for the American market.

However in Europe (and I believe in Australia as well) tape was the main medium people would have used. Certainly when the C64 was being marketed towards children as late as the early 90s, it was being sold as a cheap games machine and came with the trusty datasette.

I don't think that it was until the Amiga 500(and of course the Atari st) where the disk format really took off for the home market this side of the pond.

https://physics.stackexchange.com/a/246439

As I understand it, with my limited knowledge, deeper down it involves the exchange of virtual photons between electrons. I can see how this explains repulsion.

Though how this leads to attraction and how this looks as a Feynman diagram I'm not sure.

I had a quick glance over this, but for contexts which are defined as remote ssh hosts, I couldn't see where the images are obtained. Are they being built remotely on the host, or are they being downloaded from your local machine over a tunnel or via a docker registry?

https://www.miamidade.gov/releases/2020-04-24-sample-testing...

"Our data from this week and last tell a very similar story. In both weeks, 6% of participants tested positive for COVID-19 antibodies, which equates to 165,000 Miami-Dade County residents"

That is what the commentator is referring to in the linked post.

So if you plug their own figures into the calculator:

Sensitivity .8866 Specificity .9063

and a Prevalence of .06 based on the study, you get the 62% false positive rate.

As the prevalence increases, as with the NYC study which found the positive rate to be 21% (prevalence), the false positive rate decreases, down to 28% of the NYC study.

https://www.oxfordbiosystems.com/COVID-19-Rapid-test

"In order to test the detection sensitivity and specificity of the COVID-19 IgG-IgM combined antibody test, blood samples were collected from COVID-19 patients from multiple hospitals and Chinese CDC laboratories. The tests were done separately at each site. A total of 525 cases were tested: 397 (positive) clinically confirmed (including PCR test) SARS-CoV-2-infected patients and 128 non- SARS-CoV-2-infected patients (128 negative). The testing results of vein blood without viral inactivation were summarized in the Table 1. Of the 397 blood samples from SARS-CoV-2-infected patients, 352 tested positive, resulting in a sensitivity of 88.66%. Twelve of the blood samples from the 128 non-SARS-CoV-2 infection patients tested positive, generating a specificity of 90.63%."

That gives us 62% false positive ratio according to (where a study finds the prevalence to be 6% of subjects using the test):

http://vassarstats.net/clin2.html

In some cases we have research being carried out with such low positive results that they can entirely be accounted for by the low specificity. So for example if you took samples from 100 people, based on 90% specificity, even if everyone had never had corona, 10 could be found positive.

Credit to this post:

https://old.reddit.com/r/COVID19/comments/g7f373/second_roun...

However it should be noted the article in question for this submission does not mention the type of test used.

  GOGC=off

More details here: https://golang.org/pkg/runtime/

https://istio.io/blog/2018/soft-multitenancy/

That works well to isolate services/apps/teams from each other, but also allows services to be shared where required.

I think if you wanted true multitenancy it would be simpler to spin up a second cluster, especially if you are in gcp and controlling everything using a infrastructure as code solution such as terraform.

The NIST page links to this site, which suggests no exploit is known of as yet:

https://www.securityfocus.com/bid/107063/exploit

https://github.com/torvalds/linux/commit/9060cb719e61b685ec0...

I believe it is going to take until autumn of 2020 before we receive all of it.

Prior to this, it was possible to manually setup a cluster with kops or kubicorn and configure external-storage yourself for volumes. There was also digitalocean-cloud-controller-manager for load balancers.

How about cluster upgrades, will Digital Ocean provide a way to upgrade k8s versions on deployed clusters?

Looking forward to trying it out at some point, congratulations on the release.

    Donatism had its roots in the long-established Christian community of the Roman Africa province

Personally I've found them deeply disturbing. Throughout my life I have experienced moments of sleep paralysis at most on 10 occasions. They've left a big impact though, and I sympathize with anyone who has the misfortune of feeling as though you are trapped and unable to move.

After watching the film "Waking life" I spent a long time thinking about lucid dreaming and perhaps maybe had 1 or 2 myself. I had never connected the two however, definitely food for thought.

I've been using the do not disturb feature for a while now (2 years?), gets switched on an hour before I usually go to bed. As you mention, only calls, SMS and whatsapp is enabled for notifications, everything else is switched off. DnD stops these coming through late at night.

I've got nothing against adding extra functionality though. Perhaps being able to tell the phone do not disturb me for the 2 hours might be useful.

Must admit though, searching is always a bit of a pain, sometimes I can't seem to find emails that I know for sure are there, and after some browsing I'm able to find them.

  The Trap
  All watched over by machines of loving grace (Essential viewing for hackernews readers, I think this is his best work)
  Bitter Lake
  HyperNormalisation

However they are thought provoking and extremely well made.

Do Androids Dream of Electric Sheep? Philip K. Dick

https://en.wikipedia.org/wiki/Voynich_manuscript