Antitrust can't be left in the hands of courts. For one thing, the practices legally defined as "trust" behaviour are, to an extent, specific to time, place and

Antitrust can't be left in the hands of courts. For one thing, the practices legally defined as "trust" behaviour are, to an extent, specific to time, place and time and industry. Laws made for railroad and raw material trusts are not really applicable to operating systems or social media. A second reason is that practices evolve around legal limitations. Monopolies can stay on one side of the legal letter, and that evolves over time. To actually deal with trusts requires legislation specifically tailored to the monopolistic tendencies of (for example) the 2019 tech sector. Maybe "data share" needs to be a concept like market share is/was.