Scientists are perfectly capable of holding beliefs that they cannot prove. https://en.wikipedia.org/wiki/What_We_Believe_But_Cannot_Prove https://en.wikipedia

Scientists are perfectly capable of holding beliefs that they cannot prove. https://en.wikipedia.org/wiki/What_We_Believe_But_Cannot_Prove https://en.wikipedia.org/wiki/What_We_Believe_But_Cannot_Pro... There's a whole book with responses from real scientists regarding this.