They are doing something, but I guess it's hard when youve invested hundreds of billions of dollars over the lifetime of your industry doing R+D to perfect the

They are doing something, but I guess it's hard when youve invested hundreds of billions of dollars over the lifetime of your industry doing R+D to perfect the I/C engine. Are they just going to throw that work over the side of the ship? I mean rationally yes they should, but it's easier said than done! They also need to skill up in completely different areas of expertise, which also is hard/takes time.