Vanity of vanities, says the Teacher,
    vanity of vanities! All is vanity.
What do people gain from all the toil
    at which they toil under the sun?
A generation goes, and a generation comes,
    but the earth remains forever.
The sun rises and the sun goes down,
    and hurries to the place where it rises.
The wind blows to the south,
    and goes around to the north;
round and round goes the wind,
    and on its circuits the wind returns.
All streams run to the sea,
    but the sea is not full;
to the place where the streams flow,
    there they continue to flow.
All things are wearisome;
    more than one can express;
the eye is not satisfied with seeing,
    or the ear filled with hearing.
What has been is what will be,
    and what has been done is what will be done;
    there is nothing new under the sun.
Is there a thing of which it is said,
    “See, this is new”?
It has already been,
    in the ages before us.
The people of long ago are not remembered,
    nor will there be any remembrance
of people yet to come
    by those who come after them.

This view is one that maintains neither progress nor regress. While there is change, the change is cyclical, and thus overall things remain the same. This is much like Aristotle’s view of the eternity of the world, although Qoheleth presumably accepts the account of Genesis 1.

Since change implies becoming better or becoming worse, and not all changes are normally undone, it is very hard in practice to maintain such a view. Thus we saw in the post linked above that Aristotle in practice believed not only in the progress of the sciences, but that they had basically reached their perfection.

As a similar example, consider this post by P. Edmund Waldstein:

In his letter to Pliny the Younger on the proper procedure in the persecution of Christians the Emperor Trajan agrees with Pliny that no note is to be taken of libelli containing anonymous denunciations, for, “Nam et pessimi exempli nec nostri saeculi est.” (“They set a bad precedent and are not in the spirit of our age.”) Not of our age! How disappointing that a Roman emperor would sink to the level of that puppet of the contemporary self-congratulatory liberal establishment, the Prime Minister of Canada, who famously justified his cabinet selection with the moronic pseudo-reason “because it’s 2015.” I had thought that this species of idiocy only came into being after Vico, but apparently I was wrong.

If “because it’s 2015” is a “moronic pseudo-reason,” the reason for this would be that time is an accidental feature: 2015 is just one year in history, just like the year 1015, and the year 3015. This suggests a view like that of Qoheleth: times are all alike, not ordered according to better and worse. But like Aristotle, P. Edmund betrays the fact that he does not really accept such a view: “I had thought that this species of idiocy only came into being after Vico, but apparently I was wrong.” If times are all alike, all species of idiocy should exist at all times. The instinct to assume that this is not the case results from the implicit belief that things do indeed change, and indeed become better and worse: it is just that P. Edmund implicitly believes that they become worse, not better, and in this case his implicit belief was not borne out by experience.

Qoheleth in fact knows that many people assume that things are becoming worse, and he rejects this view, precisely because of his position that things are circular.  Thus he says,

Do not say, “Why were the former days better than these?”
    For it is not from wisdom that you ask this.

It is not from wisdom to ask this, because the former days were just like these ones. There is nothing new under the sun.

But if this question is not according to wisdom, then just as St. Paul says, “I have been a fool! You forced me to it,” so the present discussion forces us to ask in what way former days were better than these, and why, and in what way worse, and why.