It might seem odd, but some businesses and people benefited from the global effects of the pandemic. For example, let's say you're a manufacturer of a niche product like facemasks, and suddenly it becomes the most sought after product worldwide, sold for exorbitant prices. It can seem as if luck fell out of the sky, into your lap. What will you do?
One of the immediate and daily examples for this technique, also mentioned in the book, is shaving razors. Until 1971 only one blade was commonly used. Then Gillette released a razor with two blades: one pulls the hair and the second cuts it.
Later, they added a third, and even fourth, blades. I stopped at three blades.
Dividing the product to its two parts, which traditionally would have been one whole (the frame and the temples), and the possibility to create different and varied pairings, created something different. Unlike the usual product. This was a case of very interesting innovation. It enabled the company, for instance, to offer clients a vast number of choices for a relatively low cost. At the same time, this new method gave clients a feeling of independence and customization. Creating "a personal look".
The subtraction used by Itamar isn’t only of a key or other accessory whose role in opening the door is eliminated. The essence is simple and smart management of the right to open the lock and enter a home, club, center, pool, etc. Instead of the subtracted key, the system utilizes an accessory most of us already have: a smartphone. I believe anyone managing a community center or using one often appreciates Nemlock's use.