The sale of tokens is already begin. Looking for Tokenomics

Absolutely, YES! YARchain is EVM-based blockchain, so you can deploy any of your contract into the YAR.

Absolutely, YES! YARprotocol is open-sourced project. You can add any connector to the YARprotocol. But you can use your connector only with YARchain-based smart contract.

Holding the declared number of coins on a smart contract and the presence of a physical / virtual server that contains a complete copy of the blockchain.

Yes, but you will not receive a reward for verifying new blocks. The need to "raise" the node arises in the case of developing services on YAR.

Based on the description, COSMOS and PolkaDOT are Layer 0 solutions for creating new blockchains that can communicate with each other.
YAR is betting on the unification of all existing blockchains and systems into a single communications network. YAR is not a replacement for any other blockchain or platform and doesn't need any updates to exist code and infrastructure. We are positioning YAR as a blockchain interconnector. Our team is creating a new product in which we will unite the entire blockchain world, allowing developers to use the necessary technological solution of one or another system, accelerating the development and integration process into the real world.

For example, you can use IBC, and yes “IBC is designed to be a flexible and interoperable protocol that can be implemented by any blockchain, regardless of its underlying technology.”. But you should integrate IBC into your code. So IBC will never appear in the existing blockchain.

Add interoperability with YAR doesn't need any manipulation with existing projects. Just help us create a connector or write it by yourself, deploy it into YARprotocol and your blockchain is interoperable with all supported blockchains. You are developing some dApp? Integrate YAR into your dApp backend and use all power of all blockchains just with a few lines of code. You develop smart contracts for TRON and you need data from FileCoin or KAVA, or Arbitrum, or DogeCoin? Add YARconnector to your contract - just one line of code and your task is done. All of these cases are impossible without YAR.

THORChain — An Immutable, Cross-chain DEX - as we can see in the THORChain summary, written by Erik Voorhees.
ThorChain and YAR its like General ans Higher Mathematics. ThorChain can work only with coins and tokens. YAR can work with any data in any supporting entities - send, receive, create, hold, manipulate, calculate, route, etc.

LayerZero & Wormhole centralized service. It's nonsense to deal with the biggest problem of a decentralized world with centralized service. We will support all existing and new blockchains, LayerZero supports only 12. We provide 100% Proof-of-Reserve, YAR is fully open-source and anyone can become a Node Validator.

Good question. Quick overview of all of these projects:

Wanchain aims to build a distributed “bank”. Just as traditional banks are the infrastructure of the current financial framework, Wanchain seeks to build a new, distributed infrastructure of digital assets to form an improved, modern framework - an ambitious goal indeed.

Wanchain is very similar to ThorChain, but it's just a "distributed bank". It's only 10% of YAR.

ARK is a blockchain-based development platform allowing anyone to create their own fully customizable and interoperable blockchain. Reducing the industry's need for Smart Contracts by using custom transactions, logic, and multiple programming languages.

Very similar to COSMOS. YAR isn't a blockchain development tool. YAR is an interconnector of all of the existing and new blockchains and platforms.

ICON is a blockchain with the goal of "connecting crypto to the real world and advancing our society towards true hyperconnectivity". ICON aims to reach this goal by connecting independent blockchains and enabling transactions between them.

Very interesting project. But YAR solving absolutely another problem, we connect all of the web3 items in one place.