Fact #1: There are 115 million lines of code in The Linux Foundation’s collaborative projects. Compare this to the 45 million lines of code in Windows XP.
Fact #2: The Linux kernel is by far the most active open source project on Earth. Its accepts an average of 185 patches each day.
Fact #3: It’s taken about 41,000 person-years to build Linux — the equivalent of about $5 billion in developer salary.
Fact #4: The Linux Foundation pays Linus $10 million per year to continue his work on Linux. His net worth is $150 million.
Fact #5: Despite this the sums of money involved — and all the systems that rely on Linux — Linus works from home, alone, with his cat. Here’s a picture of him at his treadmill desk: