The sentence:
“I have to admit, the person who came up with this trick has an incredibly high IQ.”
is grammatically correct. Here’s a detailed breakdown:
1. “I have to admit”
- This is an introductory phrase.
- It means “I reluctantly acknowledge” or “I honestly have to say.”
- It implies that you may not have expected to give credit, but you recognize something impressive.
2. “the person”
- This is the subject of the main clause.
- It refers to the individual who invented or discovered the trick.
3. “who came up with this trick”
- This is a relative clause that describes “the person.”
- who = a relative pronoun referring to “the person.”
- came up with = a phrasal verb meaning invented, thought of, or devised.
- this trick = the idea, method, or clever technique being discussed.
So the phrase means:
the person who invented or thought of this clever method.
4. “has an incredibly high IQ”
- has = present tense of “have.”
- an = article before a vowel sound.
- incredibly = an adverb meaning extremely or very.
- high IQ = a high intelligence quotient; in everyday English, it means the person is very intelligent.
The meaning is:
The person is extremely intelligent.
Overall meaning
The sentence expresses admiration for someone’s cleverness:
“I have to admit, the person who invented this trick is extremely intelligent.”
A slightly more natural version
Native speakers often use must have because you’re inferring the person’s intelligence from what they did:
“I have to admit, the person who came up with this trick must have an incredibly high IQ.”
Here, must have doesn’t mean obligation. It expresses a strong conclusion:
Based on how clever this trick is, I conclude that the person is extremely intelligent.
This version often sounds more natural because you’re making an inference rather than claiming to know the person’s IQ.
