Three new uploads connect fallout, societal survival and the vulnerabilities of future space colonies.
On YouTube, Isaac Arthur has 1,170,000 subscribers and 176,734,784 views in all, as of November 11, 2026. In the last 7 days it gained 315,058 views. Its most watched video of the last 30 days is "Nuclear War Myths: Would Civilization Really End?", with 195,464 views. By YouTube subscribers it is No. 2,142 of the 5,393 channels on Trari, and No. 56 of 87 in category "Science and experiments".
YouTube: The numbers today
no significant change in the last month
▲ 1,570,158 in the last 30 days
a new short video usually gets 9,140 views
Apple Podcasts: The podcast
Science & Futurism with Isaac Arthur · On the podcast charts by subject
YouTube: What happened lately
Two long episodes in four days: one on synthetic fuel made from captured carbon dioxide, one on what an economy looks like when nobody has …
The video drawing the most views now
Where in the Universe Is Life Most Likely?
- Video published
- November 8, 2026
- Video views so far
- 51,015
- Video views, pace per day
- 6,854
- Views on its first day
- 34,229
Similar channels
YouTube: Position on Trari and in the category
| Among all channels on Trari | In the category Science and experiments | |
|---|---|---|
| By subscribers | 2,142 of 5,393 | 56 of 87 |
| By views gained this week | 3,808 of 5,274 | 61 of 87 |
| By views gained in the last 30 days | 3,619 of 5,043 | 52 of 81 |
The ranking by views counts only channels whose weekly number is available.
- The channel's share of the category
- 0.1% of all views the category's channels gained this week
Subscribers in the category Science and experiments
Views gained this week in the category Science and experiments
YouTube: Subscribers, last 30 days
October 13, 2026: 1,170,000 subscribers → November 11, 2026: 1,170,000 subscribers (no significant change in the last month)
YouTube: Total views, last 30 days
October 13, 2026: 175,221,500 views → November 11, 2026: 176,734,784 views · average: 52,182 views a day
YouTube: The channel's latest videos
The last 15 videos uploaded to the channel, with today's numbers. Click a video to play it here.
Audience engagement
- likes per 1,000 views
- 20.0 in the category: 30.1
- comments per 1,000 views
- 2.8 in the category: 1.1
- a video's usual first day on this channel
- 30,711 views
- short vs long
- 4 short (up to 3 minutes), 9 long
average views per short video: 7,104
average views per long video: 77,670
YouTube: Most watched videos (not Shorts)
| Video | Uploaded | Length | Views |
|---|---|---|---|
Outward Bound: Colonizing Alpha Centauri | February 22, 2018 | 41:09 | 2,221,358 |
Civilizations at the End of Time: Iron Stars | July 13, 2017 | 43:57 | 2,118,693 |
Non-Carbon Based Life | April 16, 2020 | 25:29 | 1,305,641 |
Ancient Aliens & the Fermi Paradox | May 31, 2018 | 32:10 | 1,116,389 |
Fermi Paradox Great Filters: Space & Time | June 22, 2017 | 37:40 | 1,081,847 |
YouTube: Most watched Shorts
| Video | Uploaded | Length | Views |
|---|---|---|---|
The Medusa Starship Drive | May 4, 2024 | 0:59 | 193,100 |
Hammer Habitats | March 12, 2024 | 1:00 | 86,433 |
Quasar Cannon | June 16, 2023 | 1:00 | 86,121 |
Birch Planets: Galaxy-Sized Worlds | July 5, 2023 | 1:00 | 83,040 |
How Many Stars Are Within 100 Light Years? | September 5, 2023 | 1:00 | 68,574 |
Stories
Three new uploads connect fallout, societal survival and the vulnerabilities of future space colonies.
Two long episodes in four days: one on synthetic fuel made from captured carbon dioxide, one on what an economy looks like when nobody has …

























