Uneasy ES/VIX Levels

For some time now, the ES has practically done nothing but go up. The last time that I remember anything actually significant happening in terms of volatility in this market was election night, which was a minor hiccup & was followed by a full recovery the next morning. There isn't much to be said here, aside from the fact that the ES is at all time highs, while the VIX is at all time lows.... Something's gotta give at some point. The question is when.