Founder of the world wide web says commercialisation means the net has been ‘optimised for nastiness’, but collaboration and compassion can prevail

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When Sir Tim Berners-Lee invented the world wide web in 1989, his vision was clear: it would used by everyone, filled with everything and, crucially, it would be free.

Today, the British computer scientist’s creation is regularly used by 5.5 billion people – and bears little resemblance to the democratic force for humanity he intended.