public boolean safeToScaleDown() {
        if (hasScaledIn(scalingDuration().multipliedBy(3))) return false;
        if (nodeTimeseries().nodesMeasured() != nodeCount()) return false;
        return true;
    }
Are we in a position to make decisions to scale down at this point?
node-repository/src/main/java/com/yahoo/vespa/hosted/provision/autoscale/ClusterModel.java