This theory suggests that for every big bang, there is a big crunch.

This is all you, but i can give you some topics that you could try. if it rained when you want to do something outdoors, it 'limits' that human activity. maybe you want to do an experiment that goes throughout the whole year and you have to have above freezing the entire year. this 'limits' your activity. i thought of those just off of the top of my head. something that gets to me that might be getting to you is you are thinking too hard about what to do. think simply, and if it is too simple, then bump it up just a little bit.

Answer accretion;

Ibelieve this is true m8

Ibelieve it is- a mixed economy offers some protection for consumer rights but still allows a good deal of choice.