You had better plant some currency that you can eat, because...

You had better plant some currency that you can eat, because after point 3, you wont be able to buy a potato for $1 because you cannot eat $1 note.

I meant to say:

You had better plant some currency that you can eat, because after point 3, you will not be ale to buy a potato for $1, because your $1 will be worth nothing, because you cannot eat it.