The version of Ethereum Casper you're referring to, Friendly Finality Gadget (FFG), was recently depreciated in favor of a mixed Sharding and PoS concept.

You can learn more about Casper chain v2 here: https://notes.ethereum.org/SCIg8AH5SA-O4C1G1LYZHQ?view#

I'll agree it is adventurous, but the Ethereum developers seem to have a lot of talent for making these things work.