The scientific community is divided on the nature of 'Oumuamua. Some scientists believe that it could be an interstellar object, while others believe that it could be a natural object. The truth may lie somewhere in the middle.

Arguments in favor of 'Oumuamua being an extraterrestrial solar sail:

* 'Oumuamua's trajectory is not consistent with any known natural object. It is traveling at an unusually high speed and is not following a parabolic path.

* 'Oumuamua's shape is also unusual. It is very thin and elongated, and its surface is very shiny.

* 'Oumuamua's acceleration is consistent with that of a solar sail. A solar sail is a type of spacecraft that uses the pressure of sunlight to propel itself through space.

Arguments against 'Oumuamua being an extraterrestrial solar sail:

* There is no evidence of any technology on 'Oumuamua. For example, there are no signs of any antennas or solar panels.

* 'Oumuamua's acceleration could also be explained by natural causes, such as the outgassing of ice or dust from its surface.

* The chances of 'Oumuamua being a natural object are extremely small. However, it is still possible.

Ultimately, the true nature of 'Oumuamua remains a mystery. More research is needed to determine what it is and where it came from.