Nine billion letters.
What Google DeepMind’s AlphaGenome Atlas is, in nine drawings. Dotted words explain themselves. Scroll, or let it roll.
There are nine billion ways to misspell you.
Your genome is three billion letters long. Any one of them could be swapped for one of three others. This month, somebody scored every single swap.
Only two percent of it is recipes.
Those are the genes. The other 98 percent is switches and spacing that decide when a recipe gets used. It is also the part we have been worst at reading.
Change one letter and you have a variant.
Everyone carries millions of variants. Nearly all do nothing. A few cause disease. The hard question is which.
The old way was one experiment per typo.
Weeks of lab work for a single letter. Nobody was ever going to get through nine billion.
So a model learned to read a million letters at once.
AlphaGenome predicts what a cell would do with the typo in place: how loud the gene is, where the recipe gets cut. Pick a typo and watch the read-outs.
Which typo?Then they ran it for every letter, and gave it away.
All nine billion, scored ahead of time. A petabyte of predictions, free for research. A doctor with an unexplained case no longer has to guess where to look first.
For one child, it put the answer at the top.
A severe epilepsy nobody could explain. The atlas ranked a typo outside any gene first: it creates a false splice site. The lab checked. It was right.
It is a map of guesses, and it says so.
In DeepMind’s own test the true cause made the top fifty about three times in ten. Better than before, not a diagnosis. A map tells you where to dig. People still do the digging.
Nine drawings for nine billion letters.
A Lightline film by Bolted. Independent, not sponsored.
Four things you now know.
Try to answer each before you open it.
| The number | Why nine billion? Open |
|---|---|
| The 98 % | What is most of the genome for? Open |
| The model | What does AlphaGenome predict? Open |
| The limit | Why is it not a diagnosis? Open |
| No pictures | Images were on the table for this film and left out. A helix, letters, read-outs and a list are clearer as lines. The helix is a 3D wireframe that turns as the light travels along it. |
|---|---|
| Phone first | Every shot is framed to fit a phone, and on a tall screen wide shots follow the light. |
| The facts | From DeepMind’s announcement of 8 September 2026, Nature’s news report and IEEE Spectrum. The three scores in the instrument are illustrative. Sources in ATLAS.md. |
| The controls | Roll plays it in a minute. The chapter bar, 1 to 9 and the arrows jump. Space rolls, N the director’s notes, G every dotted word. |