I have no doubt that this is a factor is why Tesla is going somewhere - I don't know that this is enough to 'render all that came before obsolete'. I'm hopeful

I have no doubt that this is a factor is why Tesla is going somewhere - I don't know that this is enough to 'render all that came before obsolete'. I'm hopeful yet though - I think a transition to electric power for cars would be wonderful - there are currently many drawbacks to electric power, mostly relating to batteries yet still to be overcome.