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> all the one's dismissing the professor have not explained the acceleration and cha ge of trajectory in a satisfying or convincing manner

I find the explanations pretty convincing.

https://www.spaceflightinsider.com/missions/solar-system/inc...

> Davide Farnocchia of the Center for Near-Earth Object Studies (CNEOS) at NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, California, recognized ‘Oumuamua’s increased speed and altered path as consistent with the actions of comets, which eject gas and dust as they approach the Sun. These jets of ejected material increase the comets’ speeds by giving them a slight push.

> People really think the guy is financially desperate to cash in with a kookie book?

"People are often willing to lie for money" seems like a claim with a lot more evidence behind it.




Without observing any outgassing, that explanation is only slightly less suppositional than the artificial one.


Outgassing is a known phenomenon.

Alien probes are not, thus far.


Hence the "slightly less", not "equally".




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