People can develop and customize new designs, devices and tools upon their own need. Open designs can be used for educational purposes that will lead to improve the designs. Open designs will help people to debug their systems and to fix them easily. The development time of new systems can be reduced by using reusable verified open design cores. Retired, work-less, enthusiastic people, and anybody who has some free time can spend it in making things good for himself and every body, yet protected by a Free License.
Students can show and prove their ideas by designing OpenIPCores.
When Commercial companies make their designs Open, anyone can study it, test it and conclude few things that can improve the design by supplying their comments to these companies. Also by making the design of their appliances open, anyone can repair it. As a result these appliances can be self repairing appliances. Some commercial management management ideas proved their failure. Such ideas like the Paranoia which makes companies divide designs between teams so as not make a single groups to recreate the entire design is bad idea and may produce bugs in the design because each team does not know anything about the work of the other teams.