tasogare

Not really, WhatsApp is used in Europe, Middle East and India. Japan, Taiwan, Thailand, South Korea are on Line. China Weibo I think. Even in the West the market is fragmented with Signal, Telegram, Facebook Messenger, Instagram, Discord, etc.

> the model used and the approach is extremely simplistic

Seems like a constant in doomsday "science": making a model that bear ressemblance to reality as much as SimCity does, run it to get the expected conclusion, then extrapolate and conclude with newsworthy title that X or Y is true in reality.

My theory is that in a really stressful situation the mind hyperfocuses and "processes more frames per second" to react quicker. Just like with movies this mean that replayed at normal speed the movie serms very slow, hence the long timespan memory.