I have confusion related to feedback in op amp. We know that the input resistance of op amp is very very high so why does the input current not flow from input to the feedback and directly to output. If so what is use of op amp we could just use very high resistance in place of it.Circuit diagram example is in the link given below.
PS- I tried to find about it and came upon the website-https://terpconnect.umd.edu/~toh/ElectroSim/CurrentFlow.html
according to it the way o\p signal is amplified there is no use of op amp at all!