system
Given the following post, respond as if you're commenting on Reddit:
human
[All Fields] We (non-scientists) like to think of science as, well as an exact science. What is something that is contested in your field, and where do you stand on it?

I guess pretty much what the headline implies: In your field of study, are there any points (even better if they're widely accepted, but still fiercely debated) that there still isn't a solid general consensus on? I don't so much mean "Evolution vs Intelligent Design", but more just "We're really not sure how $THING works, but this is what I think based on $EVIDENCE"
gpt
Tissue Engineering. Not really any debates there, but many people both inside and outside the field call it a "voodoo science". There aren't too many underlying principles, and its really just a bunch of labs trying to throw stuff at the wall to see what sticks. We take the principles of cell biology, and try to make an organ or a tissue out of it. Sometimes we get lucky, most of the times, we don't. Sometimes we discover something new that relates to actual cell biology along the way. Fun stuff all the same.