Tenet: Why we performed backwards and forwards

BBC Click’s LJ Rich looks at the best tech news stories of the week including: Apple unveiled new iPhone 13 handsets which come with Cinematic Mode, a portrait-style option for shooting videos with depth of field. TikTok launched a range of mental health features, with some support resources linked to the search term “suicide”. Australian…

Tens of thousands of ordinary people have had to flee their homes – with hundreds killed or injured in recent weeks – as Taliban insurgents continue to gain ground in Afghanistan. As foreign troops withdraw, many Afghans fear a brutal return to the regime of the 1990s, which was characterised by public executions, stonings and…

Heatwaves are becoming more common in India due to global warming. There’s nowhere to hide especially if you live in a crowded city like Ahmedabad. Shakeela Bano struggles to get her grandson Mohammed to fall asleep in their one room house due to the heat. But as the Life at 50C series on climate change…

Inside IS detention camps in Syria, officials say violence and radicalisation are a growing problem.

Disney’s The One and Only Ivan, starring Sam Rockwell, has been nominated for a best visual effects Oscar. MPC’s animation director Greg Fisher and VFX supervisor Nick Davis told BBC Click how the film’s effects were made. See more at Click’s website and @BBCClick

The 2021 Oscar nominations are the most diverse Oscars ever, with nine of the 20 acting nominees from non-white backgrounds. And two women were nominated for best director – the first time more than one woman has been shortlisted for that prize in the awards’ 93-year history. Anna Smith, a film critic and host of…