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Comment Re:We already had this sales pitch... (Score 1) 137

There are a few things wrong with your analysis. The first is that disk writes tend to be bursty for desktop users. You write a few hundred MBs (or a few GBs) and then drop down to an average of a few tens or hundreds of KBs per second. Spinning rust can easily keep up with the average write throughput of a typical user, it's the bursts that it has problems with. If you can buffer a few hundred MBs of writes, reorder them to reduce head movement, and then write them out behind the user, then you'll get much better performance. Obviously, this won't help for server workloads where you're I/O limited all of the time, but it will help a lot with desktop / laptop use.

The second is that one of the big bottlenecks for modern filesystems is the wait until data is safely in persistent storage. System RAM doesn't help here, because it goes away with power failure. To ensure consistency, you have to pause writing parts of an update until you've received confirmation that the previous part is written. In a conventional journaled FS, for example, you don't start writing the updates until you've confirmed that the journal has been committed to disk. With NV cache, you can get this confirmation practically instantly. If there's a power failure, then the drive just has to replay the transactions from NVRAM.

Comment Re:Electronic gate (Score 1) 109

You only have a gate on your property? How did it get past the gate and the guard at the entrance to the subdivision let alone the gate at the end of the driveway.

Yes gate in my gated community, I dont trust these rich fuckers, and it helps keep the asshole retired guys on the HOA board off my fucking lawn and away from the house.

Comment Re:Online ? Authors never shopped in real life (Score 2) 233

I thought Waitrose delivered everywhere where they had a large store. Don't they deliver in your area?

For what it's worth, I've had under a dozen substitutions in five years of using Ocado (fewer than I got in any six month period with Tesco before that) and things always come with long shelf lives. They also have excellent customer support and will quickly fix anything that they get wrong.

Comment Re:Online ? Authors never shopped in real life (Score 4, Interesting) 233

Unfortunately groceries kind of suck online in the UK.

Seriously? Between the major supermarket chains and Ocado all providing online order / home delivery, none of them works for you? I'll admit, I gave up on Tesco repeatedly sending me things that were one day away from their use-by date, but there's a reasonable amount of competition.

Comment Re:It's not just shocking, it's stupid (Score 1) 233

You actually see this on Amazon, where a number of third-party sellers automatically set their prices by querying the Amazon price or the cheapest third-party price and undercutting it slightly. This sometimes leads to amusing effects where two third-party sellers are offering something for 10% less than the cheapest other seller and forget to set a minimum price.

Comment Re: TracPhone: $7/month. (Score 1) 195

Oh rly? Which plan is that? The Pinocchio plan?

It's not really a plan. It's the $19.99 60-minute, 90 day refill card. With a smartphone, the minutes "triple" to 180, and you also get 180 texts and 180mb data. If you sign up for auto-refill, you get a small discount off that (and it becomes kind of a plan).

If your wireless needs fit that profile, it works out to around $7/month. I've saved a boatload of money going down that route, although I have needed to supplement it with a few data-only refills, which has only tacked on a couple of bucks per month for me on average. It does kind of rule out using any audio or video while not in WiFi range, and you can't yammer on the phone endlessly, but for me that's an acceptable trade-off.

Comment Yes still a dream (Score 2) 148

1 99.999765% of car drivers can barely handle 2 dimensions, going flying in 3 dimensions? Not a chance in hell.
2 the FAA will require a pilots license
3 the FAA will require aircraft maintenance. This means 99.999768% of all typical car owners will never be able to own one as they will whine like hungry babies when told they need to spend $8900 to have the engine rebuilt that is working just fine. Yes the FAA requires scheduled engine rebuilding.
4 Parking and FAA flight restrictions means you cant just fly from home to work.

Comment Re:CEO's fear (Score 1) 280

I seem to recall a study a few years back that showed that most highly paid CEOs' decisions were not better than random and, in a number of cases, were significantly worse. They shouldn't be worried that they can be replaced by AI, they should be worried that they can be replaced by a magic 8 ball.

Comment Re:Robots are good (Score 3, Insightful) 280

The problem isn't robots taking all our jobs, it's robots taking half of our jobs. How do you manage a society in which 50% of the working-age population are contributing essential work for the functioning of civilisation and the other 50% are not able to do anything that a machine can't do better? Unemployment rates of 10-20% are currently seriously problematic for western societies and cause huge economic problems. For some jobs, you can solve it by dividing the work among more people, so you have four people working a 10 hour week instead of one working a 40 hour week, but that doesn't help you to deal with the people who aren't able to do any available jobs.

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