The blockchain scalability problem is almost the most important one. Ethereum is trying to solve it by moving to PoS and implementing sharding. Speaking about the evolution of technologies in the industry, we can't help but notice a clear trend towards launching new Layer 1 networks focused on parallel execution or modular architecture. Aptos is a blockchain that uses both. What is Aptos blockchain, why do you need it, how reliable is it, and why should you pay attention to it?