Proof of stake has been proven to be impossible (with math)

[chinesetranslation.com]

1  Andrew Poelstra https://www.semanticscholar.org/paper/On-Stake-and-Consensus-Poelstra/5fc38a9b1301cd65604e67e1a424a1241f66cecf?p2df
2 Bitfury: https://bitfury.com/content/downloads/pos-vs-pow-1.0.2.pdf

3 Paul Sztorc's posts:
https://www.truthcoin.info/blog/pow-cheapest/
https://www.truthcoin.info/blog/pos-still-pointless/

4 In this post, the developer use math to prove Proof of stake is not possible and described a new type of attack to proof of stake blockchain that's cheap to implement
https://github.com/zack-bitcoin/amoveo-docs/blob/master//other_blockchains/proof_of_stake.md

This is the response from different team to above:
https://github.com/zack-bitcoin/amoveo-docs/blob/master/other_blockchains/the_defence_of_pos.md



Any more counterarguments?

[chinesetranslation.com]

Just added a poll.
is anyone able to vote?
it seems that the options are not available to me in my browser