It sounds like something the author exclaimed out loud and then wrote down. A more formal of writing what they said is "It—that is, Delphi—is 29 years old." E

It sounds like something the author exclaimed out loud and then wrote down. A more formal of writing what they said is "It—that is, Delphi—is 29 years old." Edit: The title read "It's 29 Delphi, I mean" at first. Now it reads "It's 29—Delphi, I mean"