As you may know, blockchains are not as effective for processing an enormous amount of transactions as a centralised system like the VISA network that can handle as more as 2,000 transactions per second. Plasma is a scalability solution for blockchains. The Plasma solution was proposed this year by Joseph Poon and Vitalik Buterin. This interesting talk explains how Plasma works and shows how smart contracts can be implemented on such a system. It also explains why not all contracts are suitable as is. Primitives for the programming language Solidity are suggested that could ease cross-chain communications in such systems.
The talk was held by Christian Reitwiessner who is working at the Ethereum Fondation and is the creator of the Solidity programing language used fo developing Ethereum smart contracts. You can find the slides of the talks here and the text version of the talk here.
We are excited to see the future of the Plasma technology.