The Liberty of Doubt by Ai Weiwei at Kettles Yard. Make of it all what you will. Some powerful stuff in show and Kettles Yard appears to have gone to war with Cheffins and their oriental department, spikey stuff.
It will take you no longer than 30 minutes unless you are deeply pretentious and it is much better than many of the deeply dubious shows they have been hoasting. It wasnt busy, though you have to book a ticket for the day, but not the time. Ive tried to be abstract about what I’ve shown so not to ruin it, but its not a retrospective and not full of work as the hype before buzzed on and the duration of the show. But you will walk away feeling that you’ve witnessed thoughtful activism.