What are you talking about? What properties?!
- The density thing was pure speculation. No Data tells us about the objects density.
- The Trajectory could be explained by other things as well. Like out-gassing, inaccuracies in the model for the object, inaccuracies in the observational data, and so on.
These scientist that wrote this paper, don’t even themselves say that aliens is the thing that fits the data the best. So what ever you believe is personal.
I still think you should give the authors credit for their interpretation of the results and how they see it fitting into the data. After all you are drawing/basing your conclusions directly from the paper that are not the same conclusions as the authors.
Interpretations is a powerful tool, and how you decide to interpret data, and language is hugely important to how you perceive the world.
Some Flat-earthers believe that the earth “plate” is accelerating at 9.80665 m/s2.
That is indistinguishable from real gravity effect. true.
If it where not for the observation that ships disappear behind the horizon and calculating paralax of the stars and other basic observations. Flat-earthers choose to ignore much of it. Instead they fill the holes they create in the data with their own wishful thinking.
Now back to Oumuamua.
There are a lot of things we do not have data on about Oumuamua. We probably never will get any more data either. Meaning that there are large holes in the data we need to describe the object accurately.
Even though scientists have speculated on some pretty interesting ideas, discussed in detail in the paper, it is only speculation.
Filling in data, where none are.
If you choose to say that that the aliens explanation fit the data best, you are saying that made-up, speculative, data is as good as factual measurements.
I’m sorry, but you are a threat to science and the scientific method if you keep claiming that aliens is the definite answer. The paper doesn’t say so, nor does the authors. (media is hyping about it, like you though)
It is a slight possibility, I admit, and hope myself that it might be Alien. Trust me. I wish it was so. But I am also a firm believer in the scientific method, and stand extremely critical of any single paper. Especially one that extrapolates on scarce data like this one.