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jjp

1,722 karma · joined January 3, 2013

Used to program mainframes, then I architected solutions, now I manage products for a large corporate. Hobby sites of climatespy.com and fuelNow.co.uk
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jjp··on A fleet of trucks just drove themselves across Europe
The speed limit for cars is often greater than for trucks.
jjp··on How to lose $172,222 a second for 45 minutes
Summary of Knight Frank high speed trading mishaps.
jjp··on Ask HN: Book binding / printing nomenclature question
Inserts
jjp··on It's Impossible to Validate an Email Address
Title on article would be more complete if said by Regex.
jjp··on Sleep deprivation is not a badge of honor
https://sleepfoundation.org/media-center/press-release/natio...
jjp··on The Search for the Perfect To-do List
I've given up chasing the software solution and realised that a paper to do list (managed in a Filofax) is the optimal for me. Most of my tasks come my way through face to face discussion so there's no email to convert to a task etc. And if it can't be taken off the list this week then it's probably a project that needs diarying.

I do use Outlook for diary management but that's because I work in a corporate environment and trying to do anything else would be working against the system. But it's one calendar for everything (work and personal).

jjp··on Boaty McBoatface: What You Get When You Let the Internet Decide
Pan-pan, pan-pan, pan-pan to all-Stations, all-Stations, all-Stations, this is RSS Boaty McBoatface. We are currently not sure where we are and are suffering from a social media crisis. Please advise whether we should follow the masses or maintain our stiff upper lip
jjp··on Ask HN: Looking for Feedback on Replacing Your DVD Library Online
If you sell the DVD what rights do I have to watch something that is no longer mine?
jjp··on Show HN: English syntax highlighter using part-of-speech tagging
Actually put all the instructions outside of the example box. First pass I assumed everything in the box was just sample so I dived straight into typing and then didn't get any colours. Then I had to reload to find out I had to tab out.
jjp··on Netflix crackdown on border hoppers could kill some unblocking companies
Makemkv plus Plex covers that one.
jjp··on I stayed in a hotel with Android lightswitches and it was as bad as you'd think
Ask for two card keys and leave one in the room.
jjp··on I stayed in a hotel with Android lightswitches and it was as bad as you'd think
Having stayed at a similar (same) hotel don't even get me started on the guest experience. It took longer to familiarise myself with all the controls in the room than a normal stay in the hotel. Also really appreciated the slight glow all the tablets gave off at night...well they did until they got covered with cushions and gaffer tape!

Jarrod

jjp··on What 5G Will Mean for You
> With 5G, downloading feature-length movies could take less than five seconds. With 4G, downloading feature-length movies could take as long as eight minutes.

But will it move everybody back to download versus streaming. Be interested to know how much of streaming start time is network time to first byte versus authenticate/authorise/check geo-fence admin activities? So would be slightly faster start time and may be less likely to degrade. However, streaming operators if they switch to download are going to have to deal with sending bytes that are never watched. Would be interesting to know how much is downloaded from Amazon Video that is never watched.

> These machines will have to communicate almost in real time with everything around them to avoid cyclists and other obstacles. That can happen only if carriers offer one-millisecond latency, something that may become a lifesaver if autonomous cars become a reality.

Will only be possible if there is a guaranteed quality of service. Would be interesting to see how your EULA/T&C of mobile service are written/rewritten to cover life critical usage scenarios.

> ability to go online no matter where they are, forcing operators to extend their networks to practically every corner of a country.

What sort of frequencies are available to 5G and how will that propagate compared to other options?

jjp··on How does HSBC's voice activated banking service work? [video]
Depending on the bank the controls vary. For example Natwest require multiple factor to setup the destination bank account the first time you do a transfer and then less authentication on subsequent transfer. Multiple factor because you would need to know my online account number, online pin code, online password be in possession of my bank card, use a Natwest card reader that authenticates me using chip and pin. Yes it's a frustrating way to pay a mate £5 but does make it a lot harder to be attacked.
jjp··on The Rise of Renting in the U.S
I've always thought this was a gap in how property management/maintenance services marketed themselves. In the past as an owner I'd have happily paid a retainer for somebody to be a trusted keyholder and just arrange for stuff to be fixed. Now I'm in a fortunate position of having 2-3 trusted trades people who can cover their specialities and for the other stuff they can't do I know they will tap into their network of people they trust to get me the right person.
jjp··on How I doubled the battery life on my Mac by closing one tab in Chrome
TLDR - shutdown tabs in Chrome that are consuming CPU. Write-up explains how to use Activity Monitor to diagnose and identify tabs causing problem.
jjp··on Paperless: Scan and index paper documents
Many (most?) banks, insurance companies have done away with physical paper and are using document management solutions of one kind or another. From a UK perspective a good starting point is BS 10008[1]. However, there is no guaranteed way that every company interprets the multitude of legal and compliance obligations. I work in this space.

[1] http://www.bsigroup.com/en-GB/bs-10008-electronic-informatio...

jjp··on No More Deceptive Download Buttons
So if a site is using Adsense and doesn't require all ads are reviewed then as site owners appears we run the risk of another part of Google telling visitors that the site is malicious. Hope that the site owner tooling referred to is good enough that it can identify the advert, at worst the network otherwise only option would be to remove Adsense code.
jjp··on Ask HN: Would you be interested in Job Application Organizer?
If you consider applying for a job as little different to a sales process/funnel could you sign-up for an account with salesforce, zoho or similar and manage your opportunities that way.
jjp··on How I got a CS degree with pen and paper and why I'm doing it again
Yes but it's a little harder to prove that the algorithm you've described works.
jjp··on How APIs Fulfill the Original Promise of Service-Oriented Architecture
Whether pretty reliable is good enough depends very much on what you are trying to achieve. I'd rather my salary wasn't deposited into my bank account on a pretty reliable basis.
jjp··on Why London Underground stopped people walking up the escalators
I assume the biggest improvement is removing the merging problem when people queuing on the left merge at the last minute and people on the right aren't being completely passive to the queue jumping.
jjp··on Ask HN: What is your company's on-call rotation like?
In a past life covering out of hours (typically 9pm through 6am) for a core application for an insurance company the set-up we had was that we had a ladder of 4-6 staff providing on-call support. Whom ever was top of the list was first paged and if they didn't acknowledge within x minutes we kept going down the list until somebody responded. Once you got called you owned all incidents for that night and the next morning you would be moved to the bottom of the list.

When we got called out we were well recompensed at minimum of two hours of 3x hourly rate. If you resolved incident in 10 minutes you still got 6 hours of pay. If you got another call within those first two hours then you didn't get anything extra until you were working for 2 hours and 1 minute , but if the 2nd call came in after 3 hours you started the clock again. During times of instability (new code release) we often had management agree to you working from first call-out until the day shift came in to order to minimise downtime. When we were working during the night the on-call always had priority, but if you were sat around waiting for the system to do something then we all did something else to keep us awake. But there was no expectation that it was other tickets or project work. We made personal choices of doing day work or it could be crossword puzzle etc.

We all had areas of expertise and if you caught something you didn't know how to resolve then we had the authority to ring anybody. And that person would also receive the same compensation. In 5 years doing this I never had a complaint from calling somebody else out. Did we get tired yes? Most of us had project roles or team lead roles during the day but we all knew that the production system had priority and we and our own line management would deal with the project work accordingly. Did we get burned out on this? No because the rota meant that you still had a life. If you were top of the list and had other commitments that night you'd negotiate coverage with somebody else further down the list to see who could go top for the night.

My employer did this because the cost of not doing and having downtime during the day was a lot higher. If the system failed out of hours then it could impact our business and we could lose c.8,000 hours of day shift working time that would still require salary payment. Plus reputation damage etc. Most I ever accumulated over a weekend was 32 hours at 3x (situation so bad required to restore database to last known good and then catch-up log files).

One night I also got it wrong and in trying to correct the incident forced us into a situation when we had to do a database restore. That caused about 4,000 man/hours of downtime. When my bosses boss came in at 6:30am (he got called out by my boss) I got sent home being told I was too tired to continue support, day shift staff would take over and the missive to ring him when I had slept. I made the phone call expecting a significant dressing down only to be told, everybody else who looked at the diagnostics said they would have done exactly the same, we've all learned, and you stay top of the list tonight so that we know you're not scared to get back on the horse. Truth be told it did knock my confidence and anything that was a little out of the ordinary after that I always ended up calling somebody else for a consult. After a while I engineered my self off the on-call list.

jjp··on Valuing time over money is associated with greater happiness
Remembering my high school economics, from too many years ago, we used the term backward bending supply curve of labour - https://en.wikipedia.org/wiki/Backward_bending_supply_curve_...
jjp··on Is there any point to the 12 times table?
> If you are building things in the US/UK/Canada then you are using feet and inches.

In the UK you are more likely to be using millimetres if working from any kind of design. Working in inches and feet would depend on your age and perhaps whether you are working on an older property that was designed in inches.

jjp··on LG made an 18-inch display you can roll up like a newspaper
Can't much off the electronics be off-board? Given I could buy a Fire, Apple, Roku etc. I've always wondered whether there is a market for just a panel with a single HDMI input.
jjp··on Telecommuting Can Make the Office a Lonely Place, a Study Says
I can relate to the research. In an office of about 70 staff there are days when we have less than 10 people at their office desk (either because they are working from home or on client sites). And it certainly makes me question why I bother going into the office on those days.
jjp··on A free-standing, waste-trapping floating dam could revolutionize ocean clean-up
Not clear from the article or linked press release how wildlife isn't caught up in the cleanup. Would also be interesting to know how small an item it will clean.
jjp··on The Food Timeline
6000 years between unlevened and yeast bread seems along time. I would have expected naturally occurring yeast to have hastened this.
jjp··on Crows caught on camera making tools in the wild
A little more on the research - http://www.exeter.ac.uk/news/featurednews/title_488900_en.ht... including why it's difficult to do this in the wild. And some earlier research http://news.bbc.co.uk/1/hi/8631486.stm with video.
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