Sam Hughes, known online as qntm, is a British programmer and science fiction author. On his personal website, Hughes posts short stories such as "Lena" (2022), about the first digital snapshot of a human brain, and serial novels such as Ra and Fine Structure. He has also written for the SCP Wiki, and his book There Is No Antimemetics Division (2021) is derived from that fictional universe. He contributed to SCP-055 alongside user CptBellman.