$NIO Inc(NIO.US)$$Tesla(TSLA.US)$ First mover advantage is awesome but...

$NIO Inc(NIO.US)$ $Tesla(TSLA.US)$ First mover advantage is awesome but it only lasts for so long. Then others step up, learn from their mistakes, improve on the technology, perfect the engineering, fine tune the business model. Hmmmm, who might that be?  Objects in your rear mirror may be closer than they appear.