I seem to recall that ads runs on one of the largest distributed MySQL instances on the planet. That’s probably the most complicated component at play here. Then again everything has to have active, secondary and tertiary so maybe it’s something upstream like dns dos protection or cdn.
Not a Google employee, just guessing.
One of many sources: https://www.theregister.com/2022/07/27/alphabet_q2_2022/
> Google Cloud brought in $6.3 billion of revenue, a 35 percent year on year increase compared to Q2 2021’s $4.6 billion revenue. But the $858 million loss was 45 percent higher than the $591 million deficit recorded last year.
You might ask: "how is that possible, with those same margin-intensive prices that AWS and Azure use?" I have no clue. It makes no sense, given the prices they charge.
Built to scale that isn’t here today ? Resume Padding ? Data centers are expensive and slow unto build
Similar to how Amazon.com is subsidized by AWS. GCP is subsidized by the ad biz