i mean, the consequences of this disruption i just profound james arbor is the founder of the independent think tank rethinks in london. he looks at how new technologies are changing society. we think by 2030 or so that disrupt him, played out. we're going to see self driving vehicles come to the market and that changes everything. because self driving vehicles allow us to unlock the real benefit of electric vehicles and that's a long lifetime. ah, there are 20 moving parts an electric vehicle compared to 2000 in a gasoline vehicle. so it just less to go wrong. vastly lower maintenance cost but more importantly a much longer vehicle lifetime. so an electric vehicle can last about a 1000000 miles. but that's irrelevant in the private ownership model we have today where we will own our own cause because we do 10000 miles a year. but when you go to a fleet ownership model, we don't own our vehicles. we just take robo taxis. each of those calls will be 100000 clos miles a year. and so you get the benefit of the long vehicle lifetime. and so you can spread the upfront cost of the vehicle over