

People knowing when they die at the latest will probably mean more than it being 50. At some point after abt 45 life becomes either (finances allowing) a hedonistic spree, gracefully putting your affairs in order, and/or an anxious nightmare watching the hours tick by. Not sure if people will come together enough to demand a kind of pension to allow for a year or two of calm for that, but anyone that can, will take ot anyway.
People will focus on their health a little less when there’s no time for many lifestyle-related illnesses to manifest.
The speed of scientific development slows. People have less time to learn, experiment, and mentor the next generation.
Briar, SimpleX, I2Pchat on desktop, maybe LXMF/Reticulum/Sideband over I2P if you want to get techy.