The Gastric Alimetry system is like an ECG for the gut - the electrical signals are 100x weaker than from the heart and very noisy. It provides data-driven insights to help clinicians work out what's going on. It is now used in 35 hospitals. Greg talks about how hard it is to build a medtech: regulatory, reimbursement & technical issues. To move fast it's important to have the right people, including key partners such as his co-founder & his Chair, and a balanced life.