Sergi Valverde🌍 Profile picture
Complex Human. He/him.
May 31 • 11 tweets • 4 min read
Very excited to share our @Trends_Ecol_Evo review paper on #punctuated_evolution: a pattern of long-term stability interrupted by dramatic changes. A thread on the origins of rapid change, from large #extinctions to socio-technological #disruption.🌍🧬🛠 doi.org/10.1016/j.tree…
Image For 50 years, punctuated equilibria has been used to explain sudden species changes in the fossil record. 🦖🔍 But what if this concept goes beyond paleobiology? Here, we're expanding it to geology, molecular biology, anthropology, and even social and technological systems. Image
Jul 13, 2021 • 6 tweets • 6 min read
What is the origin of cultural and technological collapses?
Loss of cultural knowledge has enormous social and economic consequences. Can we predict cultural collapses? What can we do to avoid them?

Find more in our last preprint with @SDuranNebreda:
psyarxiv.com/dt6bx Image We study three contemporary cases of cultural collapses in sociotechnical systems: @atari 2600 videogames, #cryptocurrency whitepapers and @Reddit posts. All three show a boom-and-bust in artifact diversity driven by collective dynamics. #ETdidntKillAtari @ibogost @NolanBushnell Image
Feb 15, 2021 • 8 tweets • 3 min read
I have just read the first chapter of Smil’s “Growth”, and yes, I think it is very interesting (although I suspect isn’t very optimistic about the future of society). @acorralcrm Reading “Growth” piqued my curiosity about Pierre Verhulst and the origin of the logistic equation, which is so familiar to students of complex systems.
Jun 1, 2020 • 9 tweets • 6 min read
In "The long and winding road: accidents and tinking in the evolution of software standardization", I review the obstacles in the quest for universal programming rules. Article available in English, Catalan and Spanish. (1/n) Proud to have congributed to this special issue on "Standards: The Building Blocks of Complexity" (check out here: metode.org/revista/standa…). Many thanks to @Revista_Metode, @JuliPereto and @ManuelPorcar1 for their editing work.
Mar 9, 2020 • 13 tweets • 8 min read
So happy to see our paper “Coexistence of #Nestedness and #Modularity in Host-Pathogen Infection #Networks” published in @natecoevo. We uncovered hidden dimensions of infection networks, which challenges established views in #ecology.
nature.com/articles/s4155… Our goal was to understand how the environment mediates in the pattern of host-pathogen interactions, i.e., nestedness and modularity. To do so, we gathered empirical data on plant-virus infection networks surveyed at different habitats in central Spain, from 2000 to 2002.