Big Data, memes, information diffusion in online social networks and opinion dynamics

New channel Instituto de Física Interdisciplinar y Sistemas Complejos (IFISC): title sample judged 'pick' (Mostly genuine research seminars and PhD defenses on complex systems physics, but mixed with poster-party recaps, award ); passed a second screen for sellers/exam-prep/re-uploads; 0 of 3 sampled transcripts showed teaching, 0 not; titles picked one by one, checked strictly; oEmbed verified.