Greetings all - in case it hasn't made the rounds to you yet, additive mechanosynthesis of carbon dimers has now been demonstrated experimentally.
Pre-print available: https://arxiv.org/pdf/2605.27250
Good summary: https://glitchwire.com/news/researche…-opening-a-pat/
And for any chemists interested in how we made the molecular tools to perform this work happen (and a little extra bit of context at the end):
Pre-print: https://chemrxiv.org/doi/full/10.26434/chemrxiv.15002728/v2