system
Given the following post, respond as if you're commenting on Reddit:
human
[Bioshock] The difference between vigors and plasmids.

It is documented that a man named Fink shared knowledge of this liquid drink said to give you super powers with Suchong and Suchong created plasmids with this knowledge. Now don't ask me how I obtained such a secret recording, but I would like to know what the difference if there are any between to two drugs and why vigors can be ingested while plasmids needs to be injected.
gpt
Early versions of plasmids were also ingested. The only problem was that ingesting a plasmid was an inefficient delivery mechanism so they were re-engineered to be injected in order to compensate for the Adam shortage. 

The technology wasn't as widely used in Columbia, so they never saw the need to switch to the less pleasant method.