What would you do if you once going into the past, coming back you brought with you a virus, lets say the black death, or you took with you simple cold bug, what would happen? Is your resistance stronger now to viruses or did you somehow contribute to the black death.
Supposing you sneezed on your ancestor, innocent enough to you, deadly to him.
here's a scarey thought...supposing only those people with least impact on others lives, could travel in time, what I mean to say is for example a good intelligent teacher decides to travel in time, in the present her students no longer have that impact of being taught and go on to otherwise different carears.
My chest hurts and I have a tingling sensation in my left arm
Supposing you sneezed on your ancestor, innocent enough to you, deadly to him.
here's a scarey thought...supposing only those people with least impact on others lives, could travel in time, what I mean to say is for example a good intelligent teacher decides to travel in time, in the present her students no longer have that impact of being taught and go on to otherwise different carears.
My chest hurts and I have a tingling sensation in my left arm