yuhong writes: "I wrote a blog post about the old MS OS/2 2.0 fiasco from the early 1990s, including how it relates to DR-DOS. Why did it take 10 years after Intel introduced the 80386 before 32-bit programming became popular?" Link to Original Source
Every nonzero finite dimensional inner product space has an orthonormal basis.
It makes sense, when you don't think about it.