In the forum post this 1996 paper is linked to support this claim: Observation of Bound-State β−Decay of Fully Ionized 187Re: 187Re−187Os Cosmochronometry
The take-home message of the paper: fully ionised 187Re has a half life of 32.9 years rather than “normal” 187Re’s half life of 42 billion years.
First, you do realise that this is all about cosmochonometry rather than geochronology, right? Re-Os dating is used in some geochronology, but the subject of this paper, regarding highly accelerated ß-decay is really limited to stars, as it requires stellar temperatures in excess of 10 million kelvin to fully ionise 187Re.
Second, let’s be clear: this discovery wasn’t surprising to physicists. The paper’s authors explicitly set out to confirm theoretical predictions of much faster 187Re ß-decay, for example those of Yokoi et al. (1983).
What Yokoi et al. did was to predict that the ß-decay of 187Re would be 9 orders of magnitude faster in the superheated plasma of stars, estimating a half-life of about 76 years. Using this number, not the “traditional” 42 billion years half life, Yokoi et al. employed a stellar evolution model that calculated the age of our galaxy to be between 11 and 15 billion years old. They even said:
”At the present state of the art, the only reasonable conclusion which can emerge from out study is that the 187Re-187Os pair allows TG to lie in the approximate range 11<TG<G yr in agreement without adopted chemical evolution model. This coherence appears to be obtained more easily (and most likely only if) the stellar enhancements of the 187Re-187Os ß-transmutation rates are taken into account.”
In other words, this sped up radiometric decay rate actually supports the specific old age of our galaxy, and without it, the model would be harder or impossible to make viable. All this was calculated 13 years before Bosch et al. came along and experimentally demonstrated this faster decay rate in the lab.
Far from casting doubt on the validity of radiometric dating or the old age of our universe, this accelerated decay actually confirmed it.