So because we have a greater electron density that is fluctuating in between the carbon and nitrogen, we have more electrons fluctuating between those two atoms. The electrons of the oxygen will not be able to get to that carbon because of electron, electron repulsion. And that's exactly what we mean by the carbon simply will not be a good enough electrophile and this oxygen on the water will not be a good enough nucleophile for this reaction to take place at a high enough rate even though these products are more stable and lower in energy than these reactants. So we see that although this reaction is thermodynamically favorable, it occurs at an extremely slow rate. And this has to do with the double bond character of peptide bonds. In this diagram we see that the resonance stabilized structure of peptide bonds make the carbon, this carbon here less susceptible to nucleophilic attack by water.