Satoshi Nakamoto acknowledges that Bitcoin is an "investment" and predicts a maximum of 100,000 network nodes

According to Bitcoin Magazine editor Rizzo, Satoshi Nakamoto's earliest collaborator Martii "Sirius" Malmi has just released the complete email history between them, totaling 120 pages, which shows:

1. When asked about how Bitcoin will expand in the future, Satoshi Nakamoto speculated that the network would have a maximum of 100,000 nodes and delved into discussions on computation and the economics of a large-scale network. (Note: Currently there are around 50,000 nodes running Bitcoin);

2. Satoshi Nakamoto believed that the energy consumption of Bitcoin mining would be lower than traditional banking systems;

3. Satoshi Nakamoto anticipated at least one feasible non-monetary use case for Bitcoin, supporting timestamp use cases;

4. Satoshi Nakamoto expressed concerns about legal risks associated with launching Bitcoin but did not feel uncomfortable explicitly labeling it as an investment; furthermore, he himself did not introduce the term "cryptocurrency";

5. Satoshi Nakamoto considered Bitcoin to have become a way for transactions and free reserve currencies among other internet currencies.