Bruce Arthur: We’re sick of thinking about COVID. But here are the key questions we still need to answer

It's hard to say something new about the pandemic in the same way it's hard to say something new about the weather: you can talk about changing conditions, how it affects your day, but for most people it's just part of life on the planet right now. Some people value umbrellas or sunscreen. Some don't, and don't care if they or other people get sunburned, or wet.