Life is fast.
Life is ever more and more compact and condensed.
We condense our milk, Readers Digest condenses books, including a condensed Bible. Backpackers have dehydrated food, we continually squeeze more and more out of time and life. This is what they use to make DRY Ice. It can be used in Dry Cell Batteries, or for watering your Cactus or in Dry Cleaning clothes. Because it is so light weight, Backpackers like to carry it on a hike.