As we saw in "The Law of Conservation of Existence", one event has many outcomes but we experience only one of it at one instant. Now as of it, let's see what it has to showcase for the most anticipated theory of time travel. Is it possible? Or not...
When we will talk about Far Past, we shall consider the range of periods it belongs to. Here the law of conservation of existence and principles of biology come into play.
As per biology, every living object has a definite life span. Human beings too have a life span of about 70 to 80 years and will take birth and ultimately die one day. Consider, for example now you are 20years old. If in present you are in 2020 and let it be, you go too far past. Remember, the period of far past is from some thousands of years to billions of years behind the present. Here, a contradiction comes. You are 20 years old in 2020i.e. you were born in 2000 (event). Now, if you are born in 2000, then you weren't born before 2000. That implies, your existence was not there before 2000. Hence as that event is conserved, you cannot create your existence before 2000due to which you can't travel into the past before 2000 (far past).
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