I support the One Click Safer proposal for safeguarding social media. The concept is simple: instead of allowing users to reshare content indefinitely, social media platforms should remove the share button once a piece of content is two hops from its original source. If people three degrees from the author continue to find the content valuable, they would need to use copy and paste to share it further. In fact, I would go even further and propose that social media platforms remove the share button altogether; it's a simpler proposal that would be easier to explain.
In either case, these ideas make eminent sense to me. Sharing is a kind of chain reaction, and sharing on social media is completely uncontrolled at the moment. Physicists have a term for uncontrolled chain reactions: explosions. Yes, social media is dropping bombs on society daily, bombs of misinformation, lies, hatred, and outrage. Like the control rods of nuclear reactors, which slow fission enough to prevent meltdowns so that useful energy can be harvested, social media needs digital control rods, so that we can harness the power of information without destroying ourselves.