APAD: Don’t put all your eggs in one basket.

Don’t put all your eggs in one basket.

Don’t put all your effort into a single course of action, venture, investment, goal, or the like, because if it doesn’t work, you lose everything.

Example: Almost entire revenue of the company comes from Facebook. If Facebook tweaks its policies in future, the company may sink. They shouldn’t put all their eggs in the same basket.

 

I wonder nobody doesn't know this terms. 

I was adviced to divert my investment to different stocks, "Don’t put all your eggs in one basket".  but when the whole economy headed downward?  no egg survived when the whole nest turned upside down.