That is only one genesis of a hypothesis, but you are right … scientists have observed that there have been many climatic changes on Earth, and a shift in orbit is one possibility to explain that. And how could the orbit be changed? One possibility is “near misses” by celestial bodies.
I haven’t moved anything. Any plant that uses steam for energy production is putting off a tremendous amount of water vapor. I don’t need to measure all the effluent from all the plants to recognize that.
The discussion was never limited to nuclear production nor did you specify it.
The distance from earth is measured in a straight line. We cannot know the orbit of an object that hasn’t even been discovered nor can it be calculated.
The discovery of Proxima b points to just how difficult it is even with a concerted effort to locate a planet the size of the earth when closely studying a very small area of space.
You started talking about nuclear plants producing a “tremendous” amount of water vapor and that’s what I specifically asked you about. If you can’t follow a simple conversation, then your scientific ability is likewise in doubt.
In order to recognize whether it’s a “tremendous” amount, you should at least have an estimate of it’s production, otherwise you’re introducing unscientific assumptions into a discussion supposedly about science.
I didn’t say that it happened every 100,000 years, I said if it happened every 100,000 years on average (as an example, not a statement of fact) it would have happened some 35,000 times since life began. You know, like the average interval between major eruptions at Yellowstone is 700,000 years even though the actual interval between any two eruptions has never been 700,000 years.