Hippocampus is a part of the brain and is responsible for learning and memory actually increased in size when the Taxi drivers used that part of the brain to remember the routes of London streets. It has been found that their brain shrink back to normal when they stop using that part of the brain...

Trust can be extended to anyone from a taxi driver to a business partner to a lover, but obviously we don't have the same level of trust for everyone. It's important to be attentive to how deeply we trust someone and whether they've actually earned that Level of trust

• “You need water to use shampoo” → Dry shampoo
• “You need a license to drive a taxi” → Uber
• “You need alcohol to make cocktails” → Mocktails.