Perhaps, but even tiny variances could cause shifts in the timeline of thousands or millions of years, which would be a blink compared to the age of the univers

Perhaps, but even tiny variances could cause shifts in the timeline of thousands or millions of years, which would be a blink compared to the age of the universe. Look how far we’ve come in the last 200 years. Imagine a civilization that is only 10,000 years ahead of us.