Big Walk simulates the strange, childlike sensation of being unexpectedly separated from your friends, and the joy and relief of finding your way back

The other week, the SIM card in my phone stopped working. At first, working from home, the change was barely noticeable: a router handled my internet coverage, and Whatsapp messages continued unabated. Only once I left the house did I realise that a safety net had been cut. I’ve never once cal…