All INFps.
My point: I highly doubt that any ISFp would do exactly what you're describing, but something a little different, rather. My weakness is more applying rigid logical laws about how I know things are Meant To Be to reality
first (like saying "Oh, water coming out of a kettle can't be 100 degrees! It would be a gas if it were that, so it has to be cooler") before checking out that what I think makes sense actually holds true in reality.
(I also retract my evaluation that I've outgrown this habit. Not at all, I've just acquired more exposure to reality through the years
)
Basically, the N/S dichotomy paired up with Ti HA is important. I apply the Ti I acquire* to the world around me, from things as concrete as physical systems, to things as abstract as human relationships.
*Key point, I acquire Ti. I can do a lot with the laws I pick up from other sources, I can follow them logically beyond what I acquired directly, but I'm kind of hopeless at generating them on my own. This isn't hugely relevant to the discussion, though.
And more than that, it takes the single statement that is the most emotionally powerful. Look at the huge fights I used to get into with thePirate: they were basically ping-pong battles of "My idea feels like it makes perfect sense! Why do you not share this sentiment!!!
@$#!!!!! "
Ethical types think emotionally, Logical types think logically. For Ethicals, emotions are thought
with; for Logicals, they are thought
about.