That’s only possible if the entrants can muster an entry. In tech, the whales buy up or put out of business any potential rival. EG Amazon bankrupting diapers.com by selling below cost. It ended up buying then dismantling the company. This manouver is replicated constantly to the point now in tech, companies are formed simply to cash out.
Similarly in food processing, giants like Cargill or Kroger|Albertsons dominate their respective sectors. 🧵