Slack is valued at $27 billion. Imagine if that much $ was spent on open communication protocols instead. People have legitimate criticisms of FOSS, but relative to the amount of money and engineer energy spent on FOSS vs big tech, FOSS is orders of magnitude more effective. The problem is there exist only relatively weak and broke institutions building software explicitly for a holistic vision of the public good.
@aw Valued at doesn't mean that money has actually been spent by anyone on it