diff --git a/aborist/qa/concepts.py b/aborist/qa/concepts.py
index 14ae0f5..0897fc1 100644
--- a/aborist/qa/concepts.py
+++ b/aborist/qa/concepts.py
@@ -47,6 +47,25 @@ SYNONYM_GROUPS: list[frozenset[str]] = [
     frozenset({"windows", "microsoft", "win32", "winnt", "win9x"}),
     # Linux family
     frozenset({"linux", "gnu", "ubuntu", "debian", "fedora", "redhat", "kernel"}),
+    # Mind-reading / brain-computer-interface family. Closes the
+    # 2026-05-01 intent-question gap where "what technology can
+    # reconstruct another person's thoughts" pulled Videoconferencing
+    # via "person/language/speak" BM25 density and left Telepathy /
+    # Neurotechnology pages unused at #2 / #4. The concept tokens
+    # (thoughts, mind, cognition) sit alongside the specialized
+    # entity tokens (telepathy, BCI, fMRI, TMS) so a query naming
+    # either side expands to the whole family. Title-token-boost
+    # in `_rerank_by_title` then promotes the brain-tech pages above
+    # the lexical-decoy pages whose body shares only generic verbs.
+    frozenset({
+        "telepathy", "telepathic", "neurotechnology", "neuroscience",
+        "neuroimaging", "neural", "neuron", "neurons",
+        "brain", "brains", "mind", "minds", "cognition", "cognitive",
+        "consciousness", "thoughts", "thinking", "thought",
+        "psychic", "psychokinesis", "esp", "clairvoyance",
+        "fmri", "eeg", "fnirs", "meg", "ecog",
+        "tms", "transcranial", "bci",
+    }),
 ]