Conclusion (for now)
Blockchains, NFTs, and cryptocurrencies are complex, and there is much more to learn. For now, these are the essentials you need before diving deeper into blockchain and crypto.

Decentralized
Your movements and operations are not controlled by one entity; they are verified by many nodes.

Consent
To create a new block, your operation must be approved. This can happen through Proof of Work or Proof of Stake, which are different consensus methods.

Secure
Once the block is created, the information is transparent, immutable, and secure.