SuperMarket of the Unusual

I and my friend once visited a supermarket that sales electronics, we bought a mobile phone charger. The supermarket had a lot of unique products, then we started a conversation. I asked my friend, what he thinks is the most expensive and rare commodity that can be found in a supermarket. The answer my friend gave was quite intriguing. He said; John, I think the most rare and precious commodity in the universe is time . If one is in total control of time, then that person is in control of everything. The first thing he/she will do is to prevent his or herself from growing old. Secondly, one can fast forward time to view the future or backdate it to see the past. If one can predict the future then, mistakes will be minimized. So according to my friend, Time is the most precious commodity on earth and certainly is one of the items to be found in the Supermarket of the Unusual