# Michio Kaku on Reddit (u/michiokakuauthor)

Part of Scientists on Reddit, researched with Autumn (https://www.autumn.ai) from public sources. Updated 2026-11-07. Interactive version: https://www.autumn.ai/resources/scientists-on-reddit/michio-kaku

Michio Kaku: Theoretical physicist and author.

- Reddit account: [u/michiokakuauthor](https://www.reddit.com/user/michiokakuauthor/) (AMA only)
- How we know it's theirs: [The 2018 r/IAmA AMA, posted from this account](https://www.reddit.com/r/IAmA/comments/7z9531/)
- Where they post, in the records we retrieved: r/IAmA (100)
- Known activity in the posts we found: 2018 to 2019
- Wikipedia: https://en.wikipedia.org/wiki/Michio_Kaku

## Moments

### u/michiokakuauthor in r/IAmA, Feb 21, 2018 · Explains things

Replying to a redditor:

> Dr. You study string theory. For someone who is scientific illiterate can you explain this study?

> Briefly, each sub atomic particle we see (and there are hundreds of them) are nothing but tiny vibrations of a string, a rubble band.
> So each particle is just a musical note. That explains why we have so many particles. Then physics is the laws of harmony of these strings. Chemistry is the melodies we can play  on
> these strings. The universe is a symphony of strings.
> And the Mind of God, that Einstein searched for for the last 30 years of his life, is Cosmic Music resonating through 11 dimensional hyperspace.

Full thread: https://www.reddit.com/r/IAmA/comments/7z9531/comment/dumbl04/ · 615 points as of Nov 7, 2026

### u/michiokakuauthor in r/IAmA, Apr 23, 2019 · Explains things

Replying to a redditor:

> What is your opinion on the simulation hypothesis?

> I do not think we live in a computer simulation. No digital computer can compute all the motions of molecules in a simple object, e.g. the weather. The smallest object which can simulate the weather is the weather itself. When you add quantum corrections, then no digital computer on earth can simulate the quantum effects in the weather. So no digital computer can possibly simulate reality as we know it.

Full thread: https://www.reddit.com/r/IAmA/comments/bghqn9/comment/elkxs66/ · 1,269 points as of Nov 7, 2026

### u/michiokakuauthor in r/IAmA, Feb 21, 2018 · Explains things

Replying to a redditor:

> Hi Michio, if I were to travel to the boundary of our universe right now, what do you think will be there? Is it possible to "fall off" this universe the same way we fall out of our bed? Thanks in advance!

> No one knows. But one possibility is that the universe is a bubble of some sort. We live on the skin of the bubble. If you travel in one direction far enough, you come back to where you started. So the farthest object is the back of your head. In this way, this bubble universe is infinite in two dimensions, since you never hit the end, but finite in three dimensions, since its just a bubble.

(Excerpt.)
Full thread: https://www.reddit.com/r/IAmA/comments/7z9531/comment/dumbef0/ · 1,490 points as of Nov 7, 2026

### u/michiokakuauthor in r/IAmA, Apr 23, 2019 · AMA answer

Replying to a redditor:

> Hey I just wanna say thanks for making me fall in love with something I don't really understand. I read one of your books in high school and it set me on a really great path of curiosity. The fact that you made these groundbreaking topics like string theory somewhat available…

> Thank you. We are all born scientists. We are born wondering where we came from, why the sun shines, why the stars twinkle, etc. But eventually we hit one of the greatest destroyers of science known to science, high school. In high school, science is made boring and irrelevant to people's lives. In my books, I try to make young people cherish science once again.

Full thread: https://www.reddit.com/r/IAmA/comments/bghqn9/comment/elkyd9k/ · 2,099 points as of Nov 7, 2026