So we're getting there.
Let's talk about R and D. I always have respect for a company that will invest its own money, which is living proof that you believe in your product. But there is a role, of course, for academic institutions or governments.
What's up for the next five years? When you have that kind of engine and now it's working, you have to look at the standards for a better environment, and the gas emissions and all that. What's in your plan for the next five years? What kind of engine should we take a look at, a mix with an electric motor plus natural gas? I'm just curious about what kind of R and D you're doing right now, when you accomplish what's supposed to be done. You have the engine now and it's working.