Walter Isaacson engagement report
@WalterIsaacson - 502K followers on X
Measured over 4 original posts from a 30-day window, last computed on August 28, 2026.
Engagement
Early reading. We have captured 4 original posts for this account, below the 8 we require before treating a median as settled. The numbers above describe what we have seen so far, not a finished profile of the account.
A typical post picks up 16 interactions against 502K followers, an engagement rate of 0.003%. Posts are seen about 19K times each, and 0.082% of those impressions turn into an interaction. That is about 3.87% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.67 post a day over the last 30 days, though only 37% of days saw any activity at all. Most posts go out around 01:00 UTC, and Wednesday is the busiest day of the week. Of the 4 posts sampled, 25% carry an image or video and 75% link out. The account's strongest tracked post pulled 4.6K interactions, about 287x its own typical post. Only 4 original posts have been captured so far, fewer than the 8 posts we want behind a median before treating it as settled. Read the figures above as an early measurement of this account, not as a finished profile of it.
Measured over 4 original posts from a 30-day window, last computed on August 28, 2026. Recurring tag: #giftarticle.
Where this sits in the catalog
At 0.003%, Walter Isaacson sits above the 10th percentile of the 41,976 accounts in this comparison. That places it in the bottom 25% band, which runs below 0.013%.
Show the percentile table
| Percentile | Engagement rate |
|---|---|
| 10th percentile | 0.002% |
| 25th percentile | 0.013% |
| 50th percentile | 0.083% |
| 75th percentile | 0.448% |
| 90th percentile | 2.08% |
| 99th percentile | 142.9% |
This ruler is the whole measured catalog, not a size-matched group: it shows where the raw rate falls across every account we can measure, all of which are large. For a like-for-like comparison, read the size-band percentile above instead. See how the bands are built
Posting timing
This account posts most often around 01:00 UTC, and Wednesday is its busiest day of the week. The bars below are the catalog-wide pattern, with this account's own busiest slot marked. They do not show how this account performs at each hour: we keep one aggregate per account, not one per hour, so that measurement does not exist in our data.
Show engagement by hour posted, utc as a table
| Hour (UTC) | Vs author median | Posts |
|---|---|---|
| 00:00 UTC | -1% | 59K |
| 01:00 UTC | -2% | 60K |
| 02:00 UTC | -3% | 58K |
| 03:00 UTC | -4% | 62K |
| 04:00 UTC | -6% | 50K |
| 05:00 UTC | -5% | 49K |
| 06:00 UTC | -5% | 56K |
| 07:00 UTC | -5% | 60K |
| 08:00 UTC | -4% | 70K |
| 09:00 UTC | -4% | 81K |
| 10:00 UTC | -3% | 83K |
| 11:00 UTC | -3% | 91K |
| 12:00 UTC | -2% | 100K |
| 13:00 UTC | -2% | 109K |
| 14:00 UTC | -3% | 113K |
| 15:00 UTC | -2% | 116K |
| 16:00 UTC | -3% | 113K |
| 17:00 UTC | -3% | 105K |
| 18:00 UTC | -2% | 98K |
| 19:00 UTC | -2% | 93K |
| 20:00 UTC | -1% | 87K |
| 21:00 UTC | -1% | 77K |
| 22:00 UTC | -2% | 66K |
| 23:00 UTC | -1% | 60K |
Show engagement by day of week as a table
| Day | Vs author median | Posts |
|---|---|---|
| Sunday | +5% | 256K |
| Monday | +1% | 328K |
| Tuesday | -2% | 354K |
| Wednesday | -4% | 320K |
| Thursday | -2% | 271K |
| Friday | -3% | 276K |
| Saturday | +3% | 250K |
Best tweets
- May 23, 2026287x their median
An amazing and inspiring launch by @SpaceX yesterday. Onward and upward, to the Moon. @elonmusk @NASAAdmin https://t.co/102HSL2qnB
- Aug 26, 202694x their median
Coonasses in space! Starbase Boudreaux! Louisiana heading to SPACE! @SpaceX @elonmusk https://t.co/V3Fzxvuqtz
- Jul 24, 202543x their median
The Greatest Sentence Ever Written https://t.co/ulbMGELvGw
- Jul 3, 202634x their median
galleys are here! so excited for early readers to get their hands on these. https://t.co/JjYQmhEvKv
- Jul 11, 20265.8x their median
Very sharp interview about why we should not only blame billionaires when the fault is on us, why I created a new company to write biographies, and why AI shouldn’t do the writing. Also, a shoutout to Fitzsimmons on who Harvard admits. https://t.co/7gZaY08Bc9 via @YouTube
- Jun 10, 20262.5x their median
CNBC’s @jonfortt is one of the most thoughtful reporters on tech, and he’s creating what will be an important new show. Here we talk about AI, jobs, and writing biography. https://t.co/i7NKE6byp1
- Jul 28, 20262.3x their median
Why did translator Emily Wilson dub Odysseus a “complicated man,” and what did she think of Christopher Nolan’s Odyssey? And by the way, who *was* Homer? https://t.co/bmIittdfPB
- Jun 1, 20261.6x their median
Talking with my @Tulane colleague and one of my favorite writers, Jesmyn Ward, about the South, race, Faulkner, and coming home. https://t.co/6bCGWFgA6d
- Jun 23, 20261.6x their median
A tough road, but some impressive gains. https://t.co/UdeRCssgzP
- Jun 11, 20261.6x their median
How the Founders created a forcing mechanism. https://t.co/CQLrntPB1b
Ranked by total interactions across everything we have tracked for this account, which is a longer history than the 30-day window the rates above use. The multiple compares each post to this account's own median.
Recurring topics
The most frequent hashtags in the sampled posts. They describe what this account writes about; they are not a performance signal, and the catalog-wide breakdown on the hub shows how little hashtag count moves.
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Reading these numbers
A typical post picks up 16 interactions against 502K followers, an engagement rate of 0.003%. Posts are seen about 19K times each, and 0.082% of those impressions turn into an interaction. That is about 3.87% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.67 post a day over the last 30 days, though only 37% of days saw any activity at all. Most posts go out around 01:00 UTC, and Wednesday is the busiest day of the week. Of the 4 posts sampled, 25% carry an image or video and 75% link out. The account's strongest tracked post pulled 4.6K interactions, about 287x its own typical post. Only 4 original posts have been captured so far, fewer than the 8 posts we want behind a median before treating it as settled. Read the figures above as an early measurement of this account, not as a finished profile of it.
- What is Walter Isaacson's engagement rate on X?
- Walter Isaacson (@WalterIsaacson) has an engagement rate of 0.003%, based on the median interactions across 4 original posts from the last 30 days against 502,421 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
- Is that a good engagement rate?
- At 0.003%, Walter Isaacson sits above the 10th percentile of the 41,976 accounts in this comparison. Those comparison accounts are all large ones, because our scanning cadence is weighted towards big accounts, so this is a ranking among peers of similar scale rather than a ranking across X.
- Does @WalterIsaacson have real engagement?
- There is not yet enough sample to rank this account against others of its size.
- When does @WalterIsaacson post?
- Most posts go out around 01:00 UTC, and Wednesday is its busiest day, at roughly 0.67 posts per day across the measured window.