Free PDF: The Genius Workout — 50 brain teasers + the 25 highest IQs in history.

Leucippus vs Walter O'Brien (Obrien)

Who Was the Greater Genius? A Complete Comparison

Leucippus
IQ180
Born460
OriginAbdera or Miletus
Known ForCreating the philosophical theory of atomism.
VS
Walter O'Brien (Obrien)
IQ197
Born1975
OriginCounty Wexford, Ireland
Known ForInspiration of the television series Scorpion

About Leucippus

A philosopher who was the earliest Greek to develop the theory of atomism.

Read full biography of Leucippus → · In-Depth Article →

About Walter O'Brien (Obrien)

An Irish businessman & information technologist

Read full biography of Walter O'Brien (Obrien) → · In-Depth Article →

The Verdict

Based on estimated IQ scores, Walter O'Brien (Obrien) (IQ 197) ranks higher than Leucippus (IQ 180). However, both made extraordinary contributions.

Frequently Asked Questions

Who had a higher IQ — Leucippus or Walter O'Brien (Obrien)?

Leucippus had an estimated IQ of 180 while Walter O'Brien (Obrien) had an estimated IQ of 197.

What is each genius known for?

Leucippus is known for: Creating the philosophical theory of atomism.. Walter O'Brien (Obrien) is known for: Inspiration of the television series Scorpion.

Are both considered geniuses?

Yes. Both Leucippus and Walter O'Brien (Obrien) are universally regarded as among history's greatest intellects.

Full Profile: LeucippusFull Profile: Walter O'Brien (Obrien)

← Browse all genius comparisons | IQ Rankings

Trending Comparisons

Albert Einstein vs Isaac NewtonLeonardo Da Vinci vs Nikola TeslaMarie Curie vs Stephen HawkingAda Lovelace vs Alan TuringBobby Fischer vs John Von Neumann

Top IQ Rankings

Highest IQ in HistorySmartest People Alive TodayHighest IQ Child ProdigiesGreatest PhysicistsGreatest Mathematicians

Child prodigies

Gregory SmithMacaulay CulkinRay UshikuboWilliam Maillis
Child prodigies →Highest IQ child prodigies →

Play & come back tomorrow

🔥 Daily Genius Challenge · Genius trivia
Whose brain was removed and studied for decades after death?
🧠 Which Genius Are You?📊 Free IQ Test