Do you think cardano will over take ethereum in terms of tech with voltaire being worked on this year. Along with erc20 converter for easy conversion to cardano via ethereum. 
Though Cardano is one of the most decentralized and secure network , with ongoing development and new partnership are being formed but it is unlikely that it can challenge leading role of crypto in the near future. The pace of development on Ethereum is outstanding with largest number of developers worldwide, which no other network can match. That is why Ethereum is always first choice of high profile projects to launch on.