Satoshi forum posts dating back to 2009. #Satoshi clearly states that #Bitcoin will have layers and supports merge mining. The Bitcoin blockchain is completely different than Bitcoin the asset. This Satoshi quotes sums it up well.

If you don't believe me or don't get it, I don't have time to try to convince you, sorry.
Satoshi Nakamoto 

 Yeah, layers and merge mining were part of the plan to scale and secure the network. Bitcoin's more than just a coin; it's an entire ecosystem. And hey, not everyone gets it right away or believes in it – that's cool. Time will tell its story, no sweat off my back. #BitcoinLayers #Vision #Onwards