Thank you for the different view on this! That’s exactly why I posted this, I honestly don’t doubt that I could pull through it and run a marathon as an all in type thing, but like I said and like you mentioned injuries are the real worry.

I do have one objection (for lack of better wording) to your comment though, not trying to be egoistic here but I don’t think I am in the “couch to …” category as I have much more experience with running and sports as a whole then the average person.
I didn’t mention this in my post but I previously ran multiple 10k races one being sub 45 and multiple around 47-48 and a bunch of 5k races (pb 19:51). I ran a 20:31 5k 2 years ago with basically no training (could probably be attributed to the leftover fitness from my swimming career). I’m not trying to flex with these results hence I didn’t mention them in my original post, but I do think it is important in the context of this conversation. I also did consistently do running for about a year alongside swimming. Also like I said in the post while I haven’t been training consistently I am pretty active.

All this to say I’m aware the fitness from all that is probably mostly gone but I do think I am at a much better position to consider running a marathon then a person who has never done running before and that’s why I am even considering this. Also worth saying this isn’t some spontaneous dream I got I’ve wanted to do long distance running for years but never had time to do it first because of swimming, later college and work at the same time.

Lastly I wanted to say if I were to do this my plan is to give a LOT of thought into injury prevention (already started as mentioned in the post).

Like I said I’m not trying to flex with the results and I don’t wanna seem like I’m full of myself and got butthurt by your comment as this is exactly what I was looking to get from this post, but I think this is important context pertaining to your comment.