An ecological approach to structural flexibility in online communication systems
Palazzi,María J.; Solé-Ribalta,Albert; Calleja-Solanas,Violeta; Meloni,Sandro; Plata,Carlos A.; Suweis,Samir; Borge-Holthoefer,Javier;
Nature Communications , (2021)
Human cognitive abilities are limited resources. Today, in the age of cheap information— cheap to produce, to manipulate, to disseminate—this cognitive bottleneck translates into hypercompetition for rewarding outcomes among actors. These incentives push actors to mutualistically interact with speciﬁc memes, seeking the virality of their messages. In turn, memes’ chances to persist and spread are subject to changes in the communication environment. In spite of all this complexity, here we show that the underlying architecture of empirical actor-meme information ecosystems evolves into recurring emergent patterns. We then propose an ecology-inspired modelling framework, bringing to light the precise mechanisms causing the observed ﬂexible structural reorganisation. The model predicts— and the data conﬁrm—that users’ struggle for visibility induces a re-equilibration of the network’s mesoscale towards self-similar nested arrangements. Our ﬁnal microscale insights suggest that ﬂexibility at the structural level is not mirrored at the dynamical one.