"The jet stream is a very strong force and pushing a balloon into it is like pushing up against a brick wall, but once we got into it, we found that, remarkably, the balloon went whatever speed the wind went"

This quote by Richard Branson is referring to the power of the jet stream. The jet stream is an effective force of air that can be hard to push against. Branson is stating that when they tried to push a balloon into the jet stream, it resembled pushing against a brick wall. However, once they entered into the jet stream, they found that the balloon had the ability to move at the exact same speed as the wind. This is amazing because it reveals the power of the jet stream and how it can be used to move objects rapidly. Branson's quote is a testament to the power of the jet stream and how it can be utilized to move objects rapidly and effectively.