Teresa is researching how to create energy by chemical reactions.
Teresa: I still have some sequencing that I have to work out to make sure that it's safe, but I did it.
Matt: It's just been you against the whole world, hasn't it? How have you done it and stayed so positive?
Teresa: The gift of faith.
Why does Matt think Teresa's experiment will be against the whole world?
Best Answer
He does not think that it will be but that it has been
which is an expression to describe a high level of difficulty which needs to be overcome, usually without any help since the rest of the world is against you. When placed in such difficulty, most people may lose heart, however Theresa has stayed positive through out.
A related phrase is
It is also the title of the number one hit song by Helen Reddy