# New browser plugin stops people bamboozling you with numbers

Dictionary of Numbers provides that much needed context.

I've written before about how numbers without context are meaningless. Remember the claim that "every year in Spain alone… between 6 and 18 million birds and bats are killed by wind farms"? We're used to things that number in the millions being a lot, but without context, our intuitions can mislead us. So, for instance, if I claimed that "every year in Spain alone, between 6 and 18 million bytes of pornography are downloaded", your gut reaction might be that the Spanish are porn-hungry sex-fiends – until you realise that a moderately sized picture file is around one million bytes. That stat would in fact make Spain one of the most prudish countries in the world.

So, for the wind farm example, we found a few comparisons: in the US, power lines killed 130 million birds a year, while windows took between 100 million and almost a billion each year.

That's useful – and served to put some scaremongering at rest – but we can't all be looking up US Department of Agriculture papers when there's a potentially misleading statistic. So rejoice! For there is now a Chrome extension that can do the same thing automatically.

Dictionary of Numbers "searches through the page for numbers it can understand, and when it finds one, adds an inline explanation for that number in human terms". What that means is that a report of a forest fire destroying 297,845 acres of land is followed up by a little square bracket telling you "[≈ Hong Kong]"; something 100m high is [≈ height of the Statue of Liberty (foundation of pedestal to torch)].

One could write Dictionary of Numbers off as a tool for mathematically-inclined folk, but the fact is that understanding and reasoning about numbers is an essential part of modern society. After all, it's important to know just how much of the United States was on fire.

Sadly, the extension doesn't yet have any comparisons for the figure "8 million birds", so when it comes to dealing with the critiques of climate sceptics, we're still going to have to do it the old-fashioned way. And while it's handy for money in dollars, pound sterling leaves it upset and confused. But there's a third problem with the plugin, as well. As Randall Munroe reports:

It can also come across as unexpectedly judgmental. Glen told me about complaint he got from a user: “I installed your extension and then forgot about it … until I logged into my bank account. Apparently my total balance is equal to the cost of a low-end bicycle. Thanks.”

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

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# As crime moves online, the police need the investment in technology to follow

Technology offers solutions, not just threats.

It’s perhaps inevitable that as the world becomes more digital, so does crime. This week Alison Saunders, director of public prosecutions, recognised that online crime is as serious as face-to-face crime. “Hate is hate,” Saunders wrote referring to internet abuse, and the police should protect people from it wherever they are. This will add demand to under-pressure police forces. And it is only the tip of the iceberg.

Forty-seven per cent of crime involves an online element. Police recorded 30,000 instances of online stalking and harassment last year. People are 20 times more likely to be a victim of fraud than robbery, costing businesses an estimated £144bn a year. On a conservative estimate, 2,500 UK citizens use the anonymous dark web browser, Tor, for illegal purposes such as drug dealing, revenge porn and child sexual exploitation.

The police need new technology to meet demand, a Reform report published today finds. Some progress has been made in recent years. West Midlands Police uses an online portal for people to report incidents. Durham uses evidence-gathering software to collect social media information on suspects, and then instantly compile a report that can be shared with courts. Police have benefited from smartphones to share information, and body-worn cameras, which have reduced complaints against police by 93 per cent.

Yet, Theresa May’s 2016 remarks that police use “technology that lags woefully behind what they use as consumers” still stand. Officers interviewed for Reform’s research implored: “Give us the tools to do our job”.

Online evidence portals should be upgraded to accept CCTV footage. Apps should be developed to allow officers to learn about new digital threats, following the US army’s library of knowledge-sharing apps. Augmented-reality glasses are being used in the Netherlands to help officers identify evidence at digital crime scenes. Officers would save a trip back to the station if they could collect fingerprints on smartphones and statements on body-worn cameras.

New technology requires investment, but forces are reducing the resources put into IT as reserves have dried up. Durham plans to cut spend by 60 per cent between 2015-16 and 2019-20. The government should help fund equipment which can meet demand and return future productivity savings. If the Home Office invested the same as the Department of Health, another department pushing “transformative” technology, it would invest an extra £450m a year. This funding should come from administrative savings delivered through accelerating the Government’s automation agenda, which the think tank Reform has previously calculated would save Whitehall £2.6bn a year.

As crime moves online, police must follow. Saunders is right to point to the importance of meeting it. But technology offers solutions, not just threats. Installing the next generation of equipment will give police the tools to do their jobs, addressing online hate and more.

Alexander Hitchcock is a senior researcher at reform