Let's answer some questions you may have.
Other blockchain architectures are monolithic. This means that they implement a single blockchain, which consists of a single set of validators and a single execution environment. AVA is designed to be a build-your-own-blockchain platform. You can define your own set of validators, and import your own functionality (e.g. import the Ethereum virtual machine, or EVM).
This is where subnetworks come in: they allow you to deploy sandboxed blockchains that are part of the larger AVA network. They can operate entirely privately or interoperate freely with the rest of the network. An example of such a subnetwork is Athereum.
In short, the AVA token is crucial for securing the network, paying for expensive operations in the network, and enabling atomic swaps of assets (between subnetworks). The AVA token has similar functionality to “gas” in Ethereum, although it has additional utility.
Usually transactions should finalize in about a second.
The initial AVA team consists of distributed systems and finance experts, with deep domain expertise in building blockchains and financial products. As we open-source our technology, development will be global.
Each subnetwork on AVA supports over 6000 transactions per second and has the potential to achieve over 20,000 transactions per second with additional optimizations.
AVA provides a platform for the development of compliant and interoperable public and private blockchains, thus enabling -- for the first time -- the right architectural foundations for democratizing capital flows. Leveraging the platform's high level of performance and flexibility, AVA enables new forms of marketplaces for assets.
The main client is open sourced on Github. Check it out here.
Creation of new subnetworks and validation into permissionless subnetworks is -- of course -- entirely permissionless. Anyone can use the AVA token and boot up a new subnetwork or validate existing permissionless ones. However, the private deployments on AVA will remained permissioned. The hybrid architecture is what enables AVA to bridge all forms of blockchains so seamlessly.