CLEAN: Dubai Airshow opens with more displays, but less deals seen

The transcript discusses the economic challenges faced in 2010 and 2011, highlighting encouraging growth in the Middle East and Africa. It explains the cyclical nature of economic crises and their impact on aviation, emphasizing resilience and recovery.

What does the speaker mean by 'cycles some deeper and more pronounced than others'?

What is the overall message the speaker conveys about overcoming challenges?