TEAD1 and cyst: A recent study combining ATAC‐sequencing and RNA‐sequencing suggested that TEAD1 and TEAD3 are among the master regulators of TE specification in human embryos.[2] Consistently, the cyst formation rate and the attachment competency of hEPSC‐em derived BAP‐EB were significantly higher than that from the hEPSC‐ES.