One theory about why antimatter exists was developed by John Wheeler and Nobel laureate Richard Feynman based on the idea that physical systems should be time-reversible.

约翰-惠勒和诺贝尔奖得主理查德-弗雷曼，他们基于物理体系中时间应该可以倒流的想法，提出了一种反物质理论。

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One theory about why antimatter exists was developed by John Wheeler and Nobel laureate Richard Feynman based on the idea that physical systems should be time-reversible.

约翰-惠勒和诺贝尔奖得主理查德-弗雷曼，他们基于物理体系中时间应该可以倒流的想法，提出了一种反物质理论。

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