No. Fact: Something known or proven to be true Lie: A deliberate falsehood with intent to deceive Opinion: A view or judgement formed in the mind pertaining to a particular matter, or, a view or judgement about something, not necessarily based on facts or knowledge His opinion is that the only thing better in D2 is the feel of the gunplay, based on whatever his personal criteria for satisfaction and enjoyment may be. You disagree based on your criteria, and arrogantly call him a liar which would require your assertions to be factual, despite the fact that you just admitted they were opinions.