Is the global economy completely unpredictable?

I am trying to research uncertainty and how predictions are made in economics, in order to answer this question for my Welsh Baccalaureate individual project. I plan on studying economics at university next year, and this question has always interested me. Would you please be able to answer this questionnaire: https://docs.google.com/forms/d/e/1FAIpQLSchYiLZtb3EvuaPbd81qQMIXWe3O94sA8X7unU17bBLraqeGA/viewform?usp=dialog

Thank you!