Will intellectual property hinder the development of the world?

Short-sighted.

If there is no intellectual property protection, whoever creates will think of plagiarism.

Precisely because of the protection of patent rights, under the temptation of monopoly profits, there will be continuous innovation

Furthermore, invention patents only protect for 20 years and practical appearance for 10 years. . The intention is that everyone can use it at will after the expiration date to promote the process of civilization