I personally take the approach that one should think Less Wrong and act Long Now, if you follow me. I diligently do my daily spaced-repetition review and n-backing. I carefully design my website and writings to last decades, actively think about how to write material that improves with time, and work on writings that will not be finished for years (if ever).

It's a bit schizophrenic since both are fairly total worldviews with some fairly conflicting recommendations about where to invest my time - it's a case of very low discount rates versus very high discount rates, I suppose.

Perhaps we should view the Long Now as insurance? I think that's how they describe some of their proposals like a Long Library and seedbanks - as insurance in case the future turns out to be surprisingly unsurprising.