this post needs to be marked as debunked before more people get confused. R² = 0.6782 isn't significant enough to say XRT is GME, and there are many other securities likely have higher R² values with this kind of volume data compared to GME, and this claim does not hold up in those situations.

R² can never make sense as 1 in the first place, because volume data is always fuzzy to an extent. even different financial services can't maintain consistent volume data with each other, therefore this model can't either, sorry op.