Looking at the actual figure of 2020 of A$60m and a raise of $1B...

Looking at the actual figure of 2020 of A$60m and a raise of $1B USD so roughly 1.25+ billion val, it is consistent with the hypothesis of a 20x revenue as a benchmark for this kind of company.
At a 150-200% growth (roughly) YOY this won’t take long to compound to a billion dollar revenue company. To be precise, if the momentum of growth keeps up then we should see the billions by 2023 and if the 20x benchmark still applies then we are looking at a 20B company give and take.
Just my personal view on this, nothing more and will continue putting my money where my mouth is. I will be holding on until the momentum of growth breaks which I don’t think will happen in the foreseeable future.