Tokyo 2020 – all your key Olympic questions answered

Medals out of recycled phones, sewage-stopping sand and virtual clapping in the shadow of Covid-19 add up to a very different Olympic Games

The greatest impact of Covid on the Games, other than the fact it is being held a year late, will be the absence of spectators. Venues won't be silent, however, with an immersive sound system" playing sound created from previous Olympic Games" - which means that vocal ticket holders from many events at London 2012 will, in a manner of speaking, get to attend a second Olympics - while those watching at home will be able to clap virtually" using an app.