  We show that a ring $R$ is regular if $Tor_{i}^{R}(R^{+},k) = 0$ for some
$i\geq 1$ assuming further that $R$ is a $\mathbb{N}$-graded ring of dimension
$2$ finitely generated over an equi-characteristic zero field $k$. This answers
a question of Bhatt, Iyengar, and Ma. We use almost mathematics over $R^{+}$ to
deduce properties of the noetherian ring $R$ and rational surface
singularities. Moreover we show that $R^{+}$ in equi-characteristic zero is
$m$-adically ideal(wise) separated, a condition which appears in the proof of
local criterion for flatness. In dimension $2$ it is Ohm-Rush and intersection
flat. As an application we show that the hypothesis can be astonishingly
vacuous for $i \ll dim(R)$. We show that a positive answer to an old question
of Aberbach and Hochster also answers this question. We use our techniques to
make some remarks on a question of Andr\'e and Fiorot regarding `fpqc
analgoues' of splinters.
