The video of an Ola electric scooter catching fire in Pune went viral last week. There are three key takeaways for entrepreneurs, investors and crisis managers from it.One, EVs are 'EV'olving. Despite all the hype and excitement around the electric vehicle (EV) revolution, there is a plethora of issues yet to be resolved. From primary issues like safety; to other fundamental issues like EV business models and the evolution of the ecosystem: recharging infrastructure, battery swapping, power grid capacities and pricing.