Unhappy as it is to be ending the year with museums and galleries closed, 2020 has had its triumphs, and there is plenty to look forward to in 2021.

Picasso and Paper, Royal Academy ★★★ A fascinating subject that proves too unwieldy for a single exhibition. Until 13 Apr

Notable anniversaries provided the ballast for this year’s raft of exhibitions; none was dead weight, though, with shows dedicated to Rembrandt, Leonardo and

It seems they’re having trouble with the lights. Thirty-five past five and they’re not yet on. “Typical,” laughs a woman, surveying the huddle of hi-vis chaperones. Palm fronds wave in the wind, suits leave work. St James’s Square slowly fills with people. The huddle of technicians breaks up and in a short moment, candy coloured bulbs strung in rainbow belts between plane trees light up and everyone goes “Oooooh” and gets out their phone.

At 93, Picasso’s revered biographer, Sir John Richardson, has curated a vital new celebration of the artist’s life and work, focusing on one of his most enduring and delightful subjects, the Minotaur.

Before we consign this miserable year to history, there are a few good bits to be salvaged; in fact, for the visual arts 2016 has been marked by renewal and regeneration, with a clutch of newish museum directors getting into their stride, and spectacular events like Lumiere London, and London’s Burning bringing light in dark times.

Remember when you were out playing football with your mates, and your dad pulled up beside the pitch in a slightly too flashy car and told you it was time for tea or – even worse – tried to join in the game – and how you died inside. Actually, I don’t remember this Nick Hornbyesque scenario, having spent most of my childhood avoiding playing football, but I certainly recognise the sentiment.

The latest in the live events staged by theartsdesk aims to shed light on controversies and myths about the value and purpose of contemporary visual art. Taking place at the heart of the London Art Fair, where more than 100 galleries will present work this week, this double debate, chaired by our visual arts critic Fisun Güner, is the place to come and ask the tough questions about the relationship between artist and viewer.

Highlights of the year are always interesting. Things you loved at the time do, sometimes surprisingly, fade very quickly. I really enjoyed the Gabriel Orozco retrospective at the Tate: I thought it inventive and exciting. But now I have hardly any memory of it, and can no longer visualise what enthused me. (Well, apart from the sweet photos of two scooters flirting with each other. But that’s really not enough.)

Here be wonderful images, in an anthology of two score of paintings and drawings from the 1950s through the mid-Nineties by 10 artists whose shared interests only sharpen their individuality. Francis Bacon is the autodidact in the group, which includes two Berliners – Frank Auerbach and Lucian Freud – who came to England as children. David Hockney is the witty, adventurous northerner who has now returned, mostly, to Yorkshire from a life lived between London and Los Angeles.