The video tutorial explores how to detect if an Ethereum address is a contract by checking the code size using Solidity and EVM assembly. It guides through building and testing contracts, explaining the use of functions, visibility, and boolean returns. The tutorial also delves into low-level EVM interactions using inline assembly, demonstrating how to retrieve code size and test contract deployment.

How can the size of a contract's bytecode affect its deployment and functionality?

What are the potential risks of accessing the EVM at a low level?

What does the method 'X code size' do in the context of smart contracts?