The reasons why Satoshi Nakamoto's Bitcoin account has not been explicitly activated are mainly speculated as follows:

Technical aspects

- Private key management issues: Satoshi Nakamoto may have lost or forgotten the private key. Without the private key, the account cannot be operated, resulting in it remaining inactive.

- Limitations of blockchain technology: The blockchain technology of Bitcoin has irreversibility and immutability. Once the account is created and no further actions are taken, it will remain unchanged without the correct private key.

Security and privacy considerations

- Concern about identity exposure: Once the account is activated for transactions, its true identity may be tracked and exposed, which is contrary to Satoshi Nakamoto's intention of maintaining mystery.

- Security risk concerns: Activating the account may make it a target for hacker attacks, facing the risk of bitcoin theft.

Personal will and ideological factors

- Attitude towards Bitcoin's development: Satoshi Nakamoto may wish for Bitcoin to develop independently as a decentralized digital currency without their actions having too much influence, thus choosing not to activate the account.

- Long-term investment or estate planning: Satoshi Nakamoto may view these bitcoins as a long-term investment, intending to operate them at a specific time in the future or plan to leave them as an inheritance for future generations, etc. $BTC