Summations Only

How can a lack of reality be reality?

Your chosen definition is ambiguous. Does it mean, "lacking both a beginning and an end," as you suggest, or does it mean, "lacking either a beginning or an end"? It does use the word "or", not "and".A line can be infinite at only one end, you know. An infinite timeline could, mathematically at least, have a beginning but no end or an end but no beginning.

You remind me of the schoolboy joke: Which is heavier, a pound of feathers or a pound of gold? The knee-jerk answer is that they weigh the same but the trick is the fact that a pound of feathers has sixteen ounces while a pound of gold only has twelve.So, is a pound of feathers heavier than a pound of gold?Well, that depends on which is different, the ounce or the pound. Is a pound a pound and gold has bigger ounces? Or is an ounce an ounce and feathers have more of them? Or are both different?My answer to your question would be that the number of oscillations is the same. It's the size of the seconds that differs.