Contact
Since Simon and Dirk have apparently reached you in the 21st century, it's now time for you to try to reach them in the 23rd!
You see, they rely on you to tell them if their tests successfully reach the past. So, if you've listened to an episode, send an email to michaellasagna5@gmail.com, with the episode number in the subject.
While you're at it, feel free to ask them a question, or tell them about your favourite 21st century technology, such as transistor radios or laser guns.
They also understand that social media is kind of a big deal in your time, so they somehow managed to secure a presence on both Threads and Mastodon.
However, do keep in mind that they won't read anything you write for another 200 years, so if you want a response you'll either need to be really patient, or hope that they answer you in an upcoming episode.