It seems that Amazon, Ethereum, Cosmos and Filecoin just had $hpb's CEO brilliant idea of 2015-2017 
https://aws.amazon.com/blogs/startups/competition-forever-change-blockchain/
Time, Randomness, and a $100,000 Prize to Forever Change Blockchain
This proof of stake approach also moves much of the heavy lifting when extending the blockchain from software to more efficient hardware, a shift, assuming its successful, that has the potential to reduce the cost of extending the blockchain all that crypto mining to solve by a factor of 10X or more.
Massive Energy Savings
(...)
Using a Field Programmable Gate Array (FPGA) running on AWS the Amazon EC2 F1 instances Peffers was able to solve the LCS35 Time Capsule Crypto-Puzzle, a cryptographic challenge put forth by MITs Laboratory for Computer Science in just two months.
(...)
The biggest challenges for blockchain technology today are scalability and privacy, Peffers says. While the cryptographic community has made some outstanding developments that address these problems, many arent computationally practical. Hardware acceleration can improve the performance and cost of these algorithms ten, or even a hundred-fold, enabling them to be deployed, and used, on a day-to-day basis.
(...)
Its a new way of designing hardware, of open-sourcing it, Drake says. Its something that has never been tried. Hopefully, it will not only push forward a culture of collaboration between all kinds of blockchain projects, but open up the hardware design industry as well.
Drake imagines the winning teams will require a mix of skills. You are going to need people who are really good at hardware design, but also people with algorithmic skills, Drake says. My guess is the winning team will have a combination of that expertise.
(...)
Xilinx: Orders of magnitude performance and efficiency gains are achievable when developers have access to configuring and optimizing both hardware and software architectures. We are excited to see the results of this competition and how our adaptable compute platform will be harnessed to solve this challenging compute problem. Vinay Singh, Sr. Director of Market Development, Xilinx
(...)
HPB already did all of this!
https://aws.amazon.com/blogs/startups/competition-forever-change-blockchain/
Time, Randomness, and a $100,000 Prize to Forever Change Blockchain
This proof of stake approach also moves much of the heavy lifting when extending the blockchain from software to more efficient hardware, a shift, assuming its successful, that has the potential to reduce the cost of extending the blockchain all that crypto mining to solve by a factor of 10X or more.
Massive Energy Savings
(...)
Using a Field Programmable Gate Array (FPGA) running on AWS the Amazon EC2 F1 instances Peffers was able to solve the LCS35 Time Capsule Crypto-Puzzle, a cryptographic challenge put forth by MITs Laboratory for Computer Science in just two months.
(...)
The biggest challenges for blockchain technology today are scalability and privacy, Peffers says. While the cryptographic community has made some outstanding developments that address these problems, many arent computationally practical. Hardware acceleration can improve the performance and cost of these algorithms ten, or even a hundred-fold, enabling them to be deployed, and used, on a day-to-day basis.
(...)
Its a new way of designing hardware, of open-sourcing it, Drake says. Its something that has never been tried. Hopefully, it will not only push forward a culture of collaboration between all kinds of blockchain projects, but open up the hardware design industry as well.
Drake imagines the winning teams will require a mix of skills. You are going to need people who are really good at hardware design, but also people with algorithmic skills, Drake says. My guess is the winning team will have a combination of that expertise.
(...)
Xilinx: Orders of magnitude performance and efficiency gains are achievable when developers have access to configuring and optimizing both hardware and software architectures. We are excited to see the results of this competition and how our adaptable compute platform will be harnessed to solve this challenging compute problem. Vinay Singh, Sr. Director of Market Development, Xilinx
(...)
HPB already did all of this!