The information you’ve used is incomplete at best
I use all the information available to me - and by that I include all the information I find after a lot of research so its as informed as possible.
Even Spurs doing their forecasts will need to make assumptions (eg uptake on season tickets) and use incomplete information - but they will start with a lot more than me, Swiss Ramble or anyone else.
But its better than people with no information making assumptions (colloquially called talking through their arses).......not that anyone round here does that !
Lets leave it there - nothing to be gained by further discussion