system
Given the following post, respond as if you're commenting on Reddit:
human
[Indiana Jones] What, in the end, finally ends the adventures of the great Dr. "Indiana"Jones Jr.?

He has had one of the most adventurous and interesting lives on earth. He has nearly died countless times. He has rescued countless artifacts in the name of archaeology and the preservation of our history. I am wondering if anyone has come across any records or source material that have catalogues this great man's final adventure and leap into the unknown?
gpt
What stopped 'Indiana' Jones from his life of adventure? The usual- his knees.

The man eventually got too old to be in the field chasing cryptoartifacts. For a long while he supported his son Mutt and his adventures all over the globe, and could be occasionally found providing logistical to Mutt's team, and helping with his vast global connections and substantial financial assets. Instead of writing grants, he got to fund them.

As well, he had a long career in academia, and was often happy to be found hanging out a dig sites and regaling younger archaeologists with tales of old. He was published, as is necessary to maintain a career as a professor, but only as much as was required. 

The quirkiest quality of Professor Henry Jones was his complete willingness to travel at the drop of a pin. If he so much as received even a vague invitation for his friends or associates, he would fly off and go see them. It was during one of those trips that he disappeared. 

A friend called from Argentina asking him to check out legends of some artifacts from the pre-colonization days of the country, and never returned. One legend is that because of a curse put on him in the name of Kali, an anaconda claimed his life while he was sleeping in an indigenous peoples' campsite. The more popular theory is that refugee remnants of the National Socialist party living in Argentina finally got their revenge. 

The simple truth is, like the many artifacts he chased, he was lost to history.