Although quantum mechanics is essential to understand microscopic systems, it has little effect on heavier objects. Experiments have now put strict constraints on theories that use gravity to explain the absence of large-scale quantum effects.

中文翻译：

---

大规模测试

尽管量子力学对于理解微观系统必不可少，但对较重的物体影响很小。现在，实验已经对使用重力来解释缺乏大规模量子效应的理论施加了严格的限制。