I wrote a story of how Olio, a food sharing app, validated assumptions with only a WhatsApp group without building anything. The have raised, so far, $53m on s

I wrote a story of how Olio, a food sharing app, validated assumptions with only a WhatsApp group without building anything. The have raised, so far, $53m on series B. > ‘First, start small, really small. Second, test, iterate and learn as quickly as possible. And third, having a clear mission/ purpose that is undeniably good for the world is the most powerful of all secret weapons!’ — Tessa Clark, Olio's co-founder