The results showed that, indeed, experiencing physical attraction highly correlates with experiencing LAFS.
In fact, the data showed that 1-unit increase in attractiveness ratings lead to a chance of LAFS about 9 times as high.
Another mechanism of creating the illusion of LAFS is the tendency of couples to project their current feelings back to the first moment they met.
After all, psychology has shown us that we are story-making creatures who tend to view their past in light of the present, underestimating changes that occur over time.
Then there is the link between physical attraction and love at first sight, especially when we are first meeting someone new.