Useless IMHO (Score 1)

I think Tim Berners-Lee’s proposal is useless because: 1) privacy has been enforced this year with the GDPR law - you can already see what data is stored and with who is shared, and have the option to opt-out with your data being deleted or anonymized (in which case is harmless for the user and useful for the economy). 2) Collaboration between different apps is already a reality (ex Doodle accessing you Gmail calendar) and you can control the connection settings. 3) Zero risk for stolen data is impossible, event with his proposal : once an app get your data decrypted through your ID, it can do whatever with it.