Mandela effect
so with the Mandela effect, a little bit of manipulation always testing parameters getting the data to predict and the only thing changing is our perceived history or past. the factors that are recorded can't be changed. we are also doing a check and balance and a collective affirmation of Truth based on the perceived evidence of the matter. some of that is being manipulated but not much of it. and yes we can change reality mostly just the perceived reality though then from there the belief mean becomes actual factual evidentiary reality.