He's the man who built one of Britain's most successful software businesses, reaped a huge fortune when it was sold to Hewlett Packard - and then went to war with the American company over what Autonomy was really worth.
Now Mike Lynch has put some of his money into what could prove a really innovative software venture - but one which may signal more conflict with HP.
It's an ambitious plan to transform the benefits system - but it looks as though the technology meant to power universal credit is turning into another great government IT disaster.
This morning the work and pensions secretary Iain Duncan Smith told the BBC that the planned 2017 deadline for the programme would probably slip - although the DWP statement still talks optimistically of the continued "safe and secure roll-out" of the scheme.
Here's a cautionary tale for anyone thinking of climbing aboard the Bitcoin bandwagon. You could lose your entire investment in a moment of carelessness. Then again, you would have to be as daft and forgetful as me.
Here's how it happened. Back in the spring I acquired some Bitcoins - well about half a Bitcoin - to carry out an experiment on behalf of Radio 4's PM programme. I wanted to see how easy it was to use the virtual currency to buy something real - in this case a pizza.
A titanic battle for the living room is under way, as Microsoft's Xbox One and Sony's Playstation 4 try to offer us the all-purpose device that will give us all the entertainment we need. The convergence we've been told about for years is happening and it looks like a games console.
Well, that has been the narrative for quite a while - but I'm not so sure it is true any more. I've a hunch that the quest to produce one box that will be all things to all people may be doomed to failure. Or at least may end up as a minority pursuit.
Both consoles seem destined to do well - but neither is likely to replace all the other boxes under the TV in most homes. Whatever the industry may tell you about the ever widening audience for games in all their forms, many people just won't want an Xbox or Playstation controller to be their route into a night in front of the telly. And having tried the Xbox One's voice control, it is clever, but in my view not quite intuitive enough to persuade an older person like me to throw away the remote control.
In an office deep in London's trendy Shoreditch, Alex Klein is engaged on a mission. He's assembled a small team - an Israeli, an Italian and a smattering of recent Cambridge maths graduates - to address an important task. They are trying to make the Raspberry Pi more user-friendly.
Mr Klein, a former journalist, had his epiphany while he was trying to set up the cheap educational computer for his seven-year-old cousin. "It was totally impenetrable," he says. "The Raspberry Pi for Dummies guide was 400 pages long. It's an incredible piece of tech, but it's something that needs to be unleashed for normal people."
He's 23, he dropped out of Stanford, and his start-up is backed by some of the biggest names in Silicon Valley venture capital. Evan Spiegel, founder of Snapchat, could be the next dotcom billionaire from central casting - but only if he's right that people will pay for a social media experience.
Snapchat - for those of you who are over 25 - is a wildly popular mobile app that lets users communicate by sending each other photos which automatically delete after a few seconds. When Evan Spiegel visited London this week - his first time in the UK - he came and gave me a demo.
Rory has been watching the technology scene like a hawk for the last 15 years.
From the dotcom bubble of the late 1990s to the rise of Google and Facebook, from the Psion organiser to the iPad, he's covered all the big gadget and business stories, and interviewed just about everyone who's played a part in the story of the web.
Dot.Rory, his previous blog, was named among the Top 100 blogs by the Sunday Times
He aims to look at the impact of the internet and digital technology on our lives and businesses. Rory has been described as "the non-geek's geek", and freely admits that he came late to technology - but he aims to explain its significance to anyone with an interest in the subject.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.