i said that arrhenius theory is not wrong. it worked well for aqueous situations, and corretly accounts for y acids and bases are electrolytes. for simple rxn, we can use arrhenius cus it makes things simplier. BL can be used for gases, buffer etc
thats like the gist of my answer, plus some...
by extrapolating the curve, ure assuming that the linear relationship holds true. that cant be valid, because for all we know, it could be a superconductor below -90 degrees