@Viviane, I hate to break it to ya, but this statement is not only ignorant, but very unscientific.
Don't worry, you didn't break it to me. Atheism simply means a lack of belief in gods, goddesses, spirits, a spirit world, fairies, etc. It makes no claims about the world, senses, etc.
Without Assumptions about reality, we would not even have Science.
Science and atheism have nothing to do with each other. Science a method and process for discovery about the world around us.
Science MUST by necessity make assumptions about the natural world in order to test a hypothesis in the first place.
Which has nothing to do with atheism.
If what you say is true [science does not make assumptions] then there would be no reason to conduct an experiment since
Well, I never said that or anything like that. You appear to be struggling with reality a bit yourself.
So there you have it, an Atheist [or Agnostic] who makes assumptions.
I'm an atheist and I make assumptions. If you'll check against reality (I'm presuming you have working neurons, as you said), I said atheism makes no assumptions, not atheists. Two different things, neither of which has anything to do with science.
I have to say, you seem very confused by this.