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The thing is the two say very different things, this one: I stumbled to the ground and hit my head. I got back up. The walls and floors seemed to be moving makes it clear that for the POV cha...
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#4: Attribution notice removed
Source: https://writers.stackexchange.com/a/47666 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#3: Attribution notice added
Source: https://writers.stackexchange.com/a/47666 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
The thing is the two say very different things, this one: > I stumbled to the ground and hit my head. I got back up. The walls and floors seemed to be moving makes it clear that for the POV character they are **aware** that the walls and floors _aren't_ really moving even as they are experiencing it. Whereas in: > I stumbled to the ground and hit my head. I got back up. The walls and floors started to move it's..fuzzier. They _aren't_ thinking clearly enough to be cognizant of that distinction in the moment. I've (unfortunately) taken a few knocks to the head over the years and in more severe cases the latter scenario definitely happens. It takes a second or so for your conscious brain to catch up and apply reason to what it's perceiving, so when I read those two passages I'm automatically drawing parallels to my own experiences and the second speaks to me of a more severe knock and a greater level of impairment. There is also the matter of tense to consider - if the perspective of the book is that of a definitively past tense first person account where the POV character recounting the story from a reference frame beyond the action (e.g. it's a journal or a tale being told to another character etc) then putting the mistaken perception as if it were "fact" is clunky at best. If you've got a particular dislike for the word "seem" itself then there are other ways to express the same thing without it: > I stumbled to the ground and hit my head. I got back up. For a moment it felt as if the walls and floors were moving.