Yes, we're just talking about connections and relationships between people, but from this simple concept much more complex systems can arise.
Intuition. Boy loves girls. That is two nodes with a directed arc connecting them. If it is unrequited love, that gives one dynamic. If girl loves boy as well, then you have a bidirectional edge between two nodes, with a different dynamic. Add another girl who loves the boy. Classical love triangle with inherent instability leading to all sorts of complications.
With larger networks we can tackle questions of influence, idea propagation, resilience, etc.
Think of it as a mix of sociology and graph theory.
TradeSNS易之家呼吁广大网友遵守网络相关法律法规、严禁发布各类敏感不实信息；
同时TradeSNS易之家将严厉打击各类不法传播活动和违法有害信息，构建和谐的网络空间。