1. Synereo is based on Ethereum and Ethereum can't ever work technologically. I
detailed my reasoning and specifically what I think is Greg's myopia on Ethereum's future version named Casper (which Greg Meredith is involved with on the math for consensus-by-betting). (Will be adding more on that technological point soon in the linked thread)
Ethereum 2.0 will be based on Casper which Greg is the head designer. Both Synereo and Ethereum 2.0 will utilize Casper PoS. Other than that to my knowledge, Synereo holds no other resemblance to Ethereum. There is no scripting or turing completeness in Synereo.