In 2025, the following categories of potentially promising fields and cryptocurrencies can be considered (for reference only, not as investment advice):

1. Layer 2 Solutions

Layer 2 protocols aim to enhance the scalability of main chains like Ethereum while reducing transaction costs.

• Arbitrum (ARB) and Optimism (OP): As the main scaling solutions for Ethereum, they have attracted a large number of projects and users.

• zkSync (ZKS): The application of zero-knowledge proof technology is considered the core of the next generation of scaling solutions.

2. The combination of artificial intelligence and blockchain

The rise of artificial intelligence may give birth to blockchain projects that integrate with it, promoting AI data trading, decentralized computing power markets, and more.

• Fetch.ai (FET): Focused on a decentralized artificial intelligence ecosystem.