Contact

You can contact me at matthew@builtonfacts.com

I promise to read it! I will try to respond to it if it needs a response, but I can’t promise to respond to it. This is no reflection on you whatsoever — I am both fairly busy and highly distractable. If it’s important, ping me again in about a week.

My backend email service is ProtonMail. I will respect your privacy to the maximum extent I can, and in fact I will just quote Zvi Mowshowitz’s principles and use them as my own:

• If you tell me something is fully off the record, or anonymous, or on background, I will fully honor that request. I take confidentiality very seriously. This includes glomarization, as in systematically acting so as not to give away confidential info via what things you choose not to say.
• This is not standard journalistic practice, but I allow this to be invoked retroactively, after the statement is made, although what has already been said or posted cannot be taken back and I won’t retroactively censor posts in this way.
  • With other journalists, remember you have to tell them this in advance.
• If I think you meant or should have meant for something to be confidential, I won’t laugh at your stupidity, instead I will point this out and ask you about it.
• In general, I strive to not make my source sad about the decision process that led them to talk to me, unless Slussian Protocol is involved (as in, they knew what they signed up for and it was clearly fair game and they did it anyway).

Matthew Springer
August 2026