I've become really paranoid about the T bomb.

It's a terrible, random, presence that wreaks havoc among ordinary people who are desperate to better understand the digital world around them.

The strikes are sudden, and cause irreparable damage to the conversation, article or presentation taking place at the time.

Having kept track of various attacks in the past few years, I'm pretty sure we all have a four minute warning before a strike.

The T stands for twitter, and it's rapidly destroying our chances of developing balanced, constructive and productive conversations about digital.

The most harrowing attack came last week in a conference to help colleagues better understand the opportunities that digital can bring to open policy making. The excellent Anthony Zacharzewski was on stage, inspiring, motivating and guiding the audience. He spoke about the power of communities, people's rapidly changing consumption of information, and their expectations of engagement from organisations.

He finished speaking. A couple of questions followed. Then WHAM! A T bomb landed. Someone asked how relevant twitter is, and how they can use it for better policy making.

Where did it come from? No-one really seems to know. But suddenly the room was transfixed on twitter, and only twitter. The crater that was left by this T bomb was huge, but Anthony did a great job helping everyone to climb out and think about the rest of the web. A more representative land, where the vast majority of our audiences live and work.

I don't have an answer to destroy the T bomb (other than to ban it in advance), but I can assure you there is approximately four minutes before it arrives. Time it next time you are having a conversation about digital.