The tech bubble is popping, but not in the way anyone expected. After years of fretting that free-spending start-ups with unrealistic valuations would bring down the start-up economy on its own, a global pandemic is doing it in instead.

Meal-kit delivery service start-up UCOOK, which provides the ingredients to help people make high-quality homemade meals, has seen a huge spike in demand since the start of the Covid-19 lockdown in South Africa.