[big_lefty]

Plants do not have nerves, nerve bundles, or a central nervous system. They are not animals. While it is true that humans do know everything there is to know about their world, we do know every physical feature of a plant and the exact functions that these physical features perform.

Only within the context of our severely limited understanding of organisms different from ourselves.

While they may have structural changes with environmental changes, this is only a sign that they are making structural changes with environmental changes, nothing more. Likening these changes to "thought" or "feelings" is no different than saying that the robots at an automobile factory are thinking and feeling.

That's an interesting theory. Do you have anything factual to support it?

By what mechanism would they adjust to changes in the environment without a way of sensing the changes?

Research into plants "feeling" is mysticism and right on par with "studying" ghosts and searching for Bigfoot. And it is really annoying that it frequently pops up as people try to justify killing fellow animals for food. Plants and animals are as different as animals and minerals.

The Genetic Fallacy of logic. A person makes an unproven claim about the origin of an argument and uses that as a reason why the argument doesn't work, as in "plant emotion research is about mysticism, so plant emotions do not exist".
No sale.

The fact that plants and minerals are different is not evidence that plants cannot feel.

If you are going to delve into the realm of mysticism to support eating food that tastes good to you then it would be easier if you went the Christian route. Aside from the Christian god creating all life on Earth as vegetarian in Genesis, he clearly makes eating meat the punishment for Adam and Eve's discretions in the Garden of Eden. So, from a Christian standpoint, you are partaking of one of god's required, Old Testament, punishments when you eat meat.

Another argument arising from the flawed logic of Genetic Fallacy.