Hi @mikkel1
Welcome to QuickSight Community , sounds like interesting use case. Could you please upload sample data and sample visual in the QuickSight Arena and share it to us to work together on this usecase.
You want to find out the latest recorded datapoints for every person_id and for each person-id there will be many datapoints with the same latest recorded timestamp. Wondering is the threshold is static number(0.3) or any logic needs to be applied and computed for every person-id?