ER: Existence, Reality and Time: Audiobook
According to The Books Insider's catalog data, the ER: Existence, Reality and Time audiobook runs 14.5 hours unabridged, narrated by AI Voice (about 9.6 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 14.5 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 29 days |
| 1 hour / day | 15 days |
| 2 hours / day | 8 days |
| 1 hour / day at 1.5× | 10 days |
You'll finish in – by –
Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.
What our data says
- At 14.5 hours, it runs longer than 93% of the 4,248 Lessons in Philosophy audiobooks in our catalog.
More narrated by AI Voice
AI Voice narrates 657 unabridged audiobooks in our catalog, 3,873 hours in all.
About as long, on the Lessons in Philosophy shelf
178 Lessons in Philosophy audiobooks in our catalog run within 10% of this length. The most popular on the store:
- Sapiens: A Brief History of Humankind
- Elon Musk: Tesla, SpaceX, and the Quest for a Fantastic Future
- How Emotions Are Made: The Secret Life of the Brain
- 50 Philosophy Classics: Thinking, Being, Acting, Seeing, Profound Insights and Powerful Thinking from Fifty Key Books
- Our Mathematical Universe: My Quest for the Ultimate Nature of Reality
Computed from 409,794 English-language unabridged audiobooks in The Books Insider catalog (store data read November 3, 2026). Lengths are the store's own running times. Methodology.
About this listen
ER: Existence, Reality and Time is an audiobook by Tenzin Trepp: a 14.5-hour unabridged recording, read by AI Voice, released January 16, 2026, on the Lessons in Philosophy and Non-Fiction shelves.
The listen at a glance
- Length
- 14.5 hrs
- Narrated by
- AI Voice
- Released
- January 16, 2026
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Lessons in Philosophy, Non-Fiction
- ISBN
- 9798295393020
How to listen to ER: Existence, Reality and Time free
New members at audiobooks.com get three free audiobooks with the trial.
Separately, the store's catalog carries more than 10,000 audiobooks that are always free to stream.
Start listening freeQuestions listeners ask
How long is the ER: Existence, Reality and Time audiobook?
ER: Existence, Reality and Time runs 14.5 hours unabridged. At 1.5× speed that drops to roughly 9.6 hours.
Is the ER: Existence, Reality and Time audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates ER: Existence, Reality and Time?
ER: Existence, Reality and Time is narrated by AI Voice.
Is ER: Existence, Reality and Time worth listening to at 1.5× speed?
At 1.5× you'd finish in about 9.6 hours, saving 4.8 hours.