When an Israeli man wants to date a woman...
...he asks her out that night itself.
When an Israeli entrepreneur has a business idea, he will start it that week. The notion that one should accumulate credentials before launching a venture simply does not exist.
This comes from an excerpt from the book "Start-up Nation: The story of Israel's Economic Miracle". This book is a great read in trying to understand what makes up the start-up culture of Israel.
The compulsory military service is considered to be one big keystone reason that contributes to this culture. If you are looking to build a culture that is shock and disaster proof, Israel is a great example to learn from!