Comment on

• A dust-obscured massive maximum-starburst galaxy at a redshift of 6.34.

  Riechers DA, Bradford CM, Clements DL, Dowell CD, Pérez-Fournon I, Ivison RJ, Bridge C, Conley A, Fu H, Vieira JD, Wardlow J, Calanog J, Cooray A, Hurley P, Neri R, Kamenetzky J, Aguirre JE, Altieri B, Arumugam V, Benford DJ, Béthermin M, Bock J, Burgarella D, Cabrera-Lavers A, Chapman SC, Cox P, Dunlop JS, Earle L, Farrah D, Ferrero P, Franceschini A, Gavazzi R, Glenn J, Solares EA, Gurwell MA, Halpern M, Hatziminaoglou E, Hyde A, Ibar E, Kovács A, Krips M, Lupu RE, Maloney PR, Martinez-Navajas P, Matsuhara H, Murphy EJ, Naylor BJ, Nguyen HT, Oliver SJ, Omont A, Page MJ, Petitpas G, Rangwala N, Roseboom IG, Scott D, Smith AJ, Staguhn JG, Streblyanska A, Thomson AP, Valtchanov I, Viero M, Wang L, Zemcov M, Zmuidzinas J. Riechers DA, et al. Nature. 2013 Apr 18;496(7445):329-33. doi: 10.1038/nature12050. Nature. 2013. PMID: 23598341