I wonder if a cap on trades/time_period would be useful? Each stock can only be traded once per trading day, for instance.
‘Front running’ suddenly becomes worse than useless since at best you end up holding a stock you didn’t really want for 24 hours, and at worst it could be used to trick opposing algorithms into buying ‘bad’ stocks. Panics and market crashes would presumably play out in very slow motion, allowing time for pause and reflection rather than OMFGWTFBBQ!!1! becoming the preferred strategy. But it would still allow actual investors (in the old sense of the term) to buy into or out of stocks as they want. It might also encourage companies to think more about the long term, rather than nothing beyond the next quarter.
