Computers will be hoping to finally vanquish humans today, in a contest at Bletchley Park.
A series of chatterbots will attempt to fool judges - including me - into thinking they are also human.
No computer has ever triumphed at the Loebner Prize - a version of the Turing Test, first proposed by the computer scientist Alan Turing, who worked at Bletchley codebreaking during World War Two.
But the chatterbots are coming on strong.
Steve Worswick is the person behind Mistuku, a bot anyone can chat with online and which was judged the best system in the 2013 contest. He returns this year.
"It's slowly becoming more and more involved in our everyday lives," he told Sky News.
"At the stage we're at at the moment, I don't think we need to be fearing about people's jobs.
"The use is in call centres, frequently asked questions on websites.
"I get a lot of people who practice for English as a second language.
"I also get quite a lot of people who use it for companionship.
"People who are elderly and on their own, they'll say it to things like 'I wish my daughter would visit more'. It's quite sad to see that in the chatbot."
Mr Worswick added: "The thing that sets my bots apart is that I've got a huge database of common objects and attributes associated with those objects.
"If you say to it 'Can I eat a house?' it will say something like 'You can't eat a house because houses are made of bricks and bricks aren't edible.
"It's a common sense database."
Understanding natural language has been a challenge for computer scientists since Turing's time.
Increasingly, though, they are making the their way into the real world.
And that brings the possibility of a new user interface for technology - your voice.
Apple's new AirPods, bluetooth headphones that thanks to microphones and special chip inside them, can allow users to control their phones just with their voice.
And this week, Amazon launched the Echo in the UK.
It's a bluetooth speaker you chat with, finding out news and train times, for example, but also for more complicated services, like ordering takeaway or adding items to your shopping list.
Amazon Echo vice president Michael George told Sky News: "I don't think what we're doing with voice is going to replace the phone or a touchscreen tablet or a laptop anytime soon.
"I do think that voice as a user interface will get you the opportunity to control all kinds of complex technologies in a much simpler way."
Echo is powered by an artificial intelligence (AI) called Alexa - George insists Alexa is a "she" not an "it".
Amazon has opened up Alexa so third party developers can build it into their own products and services.
Voice services will only get more capable.
So the next time you shout at your computer in sheer frustration, it might well end up shouting back.
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