I'm looking at an op-amp with a voltage Vin at the + terminal and the output voltage Vout is being fed back into the - terminal. I'm looking at an image in the ebook on this site - http://www.allaboutcircuits.com/vol_3/chpt_8/4.html

Here's how I see it, and I know I'm wrong but I just want you guys to help me see what I'm missing here:

SO... lets say that Vin is 1V. If we give the amplifier a huge gain of say.. 10^6, then Vout would be 1,000,000 Volts(assuming we have an unlimited voltage source connected to the amp), right? And this 1,000,000 Volts gets fed back into the - terminal of the amp. The new calculation of our differential amp would be 1V - 1,000,000V. So now -999,999V gets multiplied by the gain of 10^6 and our Vout goes even higher!!!

I know my view on this is all jacked up but could someone explain to me why this logic is wrong?