The Szalinski Zip Enhancer is one of many experimental inventions. The machine revitalizes an old person by transferring some of a young person's "youthful zip". When performed incorrectly, the experimental prototype transfers too much of the young person's energy into old person, causing the former to age rapidly and the latter to age backwards within two days. When performed correctly, the elderly person has some of the young person's "zesk for life".