Here's why:

* Mount Everest: The summit of Mount Everest is approximately 8,848.86 meters (29,031.7 feet) above sea level.

* Cirrus Clouds: Cirrus clouds are high-altitude clouds typically found between 5,000 and 13,000 meters (16,400 and 42,600 feet).

Therefore, even the highest cirrus clouds are still significantly lower than the summit of Mount Everest.