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Marnen Laibow-Koser vs William James Sidis

Who Was the Greater Genius? A Complete Comparison

Marnen Laibow-Koser
IQ268
Born1970
OriginDobbs Ferry, New York
Known ForBeing a child prodigy, proficient with multiple musical instruments and programm
VS
William James Sidis
IQ250
Born1898
Died1944
OriginManhattan, New York City, U.S.
Known ForThe Animate And The Inanimate

About Marnen Laibow-Koser

Is a genius with a proclaimed IQ of 268, who started studying and playing music at the age of 3 and is a multi-instrumentalist performer, as well as a computer science expert.

Read full biography of Marnen Laibow-Koser → · In-Depth Article →

About William James Sidis

American child prodigy

Read full biography of William James Sidis → · In-Depth Article →

The Verdict

Based on estimated IQ scores, Marnen Laibow-Koser (IQ 268) ranks higher than William James Sidis (IQ 250). However, both made extraordinary contributions.

Frequently Asked Questions

Who had a higher IQ — Marnen Laibow-Koser or William James Sidis?

Marnen Laibow-Koser had an estimated IQ of 268 while William James Sidis had an estimated IQ of 250.

What is each genius known for?

Marnen Laibow-Koser is known for: Being a child prodigy, proficient with multiple musical instruments and programming techniques.. William James Sidis is known for: The Animate And The Inanimate.

Are both considered geniuses?

Yes. Both Marnen Laibow-Koser and William James Sidis are universally regarded as among history's greatest intellects.

Full Profile: Marnen Laibow-KoserFull Profile: William James Sidis

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