Quoting your post:
"When your competitor launches a brand new revolutionary product, and you laugh it off, you are being optimistic."
This is just being ignorant, not optimistic. An optimist would rather think: "So they released a new revolutionary product? I am sure, if we try, we can overcome them with a even better, more revolutionary one."
I think the difference is pretty big.
Thanks for feedback on my feedback!!!!!!!
i disagree, but let's leave it at this. thanks for your comments :)