On: A joke in approximating numbers raised to irrational powers

[philipov]

sin(x)=x in the same way that c=π=1 when doing cosmology.

[bubblyworld → philipov]

At least you can often recover the constants after the fact with dimensional analysis in cosmology =P

[mr_mitm → bubblyworld]

1=c=G=hbar and sometimes =k is not even a joke, that's just natural units. Pi=e=1 however ... is only half a joke, because cosmologists are often only interested in orders of magnitudes, and even those are sometimes approximated.