This is a useless argument since there is no way to measure what case is this and what is not.

You can say "Classic slippery slope fallacy." to whatever seems like that to you.

This is an antipattern to scientific thinking as you can frame something x and then say all x are like this, look I created this framework to think about x. But in reality there is no empirical basis for this thought. And it serves no purpose other than doing more argument or winning arguments.

In the end what you wrote equates to "I don't think all of this will happen".

Chaning many possibilities makes the outcome less and less likely obviously.

Also the same principle applies to most religions I know of, for example:

- Assume there is God

- Assume it did create universe.

- Assume x

...

Then this also fits the same pattern and be called the "x fallacy" but it is useless to create an argument like this. This is useless mainly because this thinking pattern is ubiquitous in any world view.

More productive discussion might be to pick some steps in the theory they chained together and argue on that imo.