CLEAN: What's new: innovation in London limelight

The video covers various topics, starting with the specifications of a submarine, including its depth, speed, and capacity. It then introduces a magnetic tea towel innovation. The discussion shifts to trends in invention, highlighting a move towards sustainable technologies. Feedback mechanisms and the concept of heroism are briefly touched upon. Advice is given on starting a new career path, followed by instructions for a leg exercise. The video concludes with a discussion on business challenges and the importance of rest.

What is the role of feedback in the context mentioned in the text?

What advice is given regarding physical movement in the text?