Words have meaning irrespective of what you or I believe they mean.
In the same example: Other people could feel my forehead and subjectively think:
"He is warm."
"He is burning up."
"I don't think he is hot at all.
The only objective information is what the thermometer says.
Regarding climbing Everest blind: The whole world has a subjective opinion of the event, but there is no real way to objectively determine if climbing Everest blind has value.
"Regarding climbing Everest blind: The whole world has a subjective opinion of the event, but there is no real way to objectively determine if climbing Everest blind has value."
Ah, I get you. I meant that whether or not you used the word correctly depended on what you meant to say. Words may have objective meanings, but my estimation of your usage of them is subjective :) I'd say you used the correct word for what you meant. Arguably, since there is no way to objectively determine the value of climbing mount Everest, blind or not, you could also say that it has no objective value.