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@Didi

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Since 05.06.2026

Bridging the Gap Between Latent and Explicit Reasoning with Looped Transformers(github.com)
Language models typically reason via explicit chain-of-thought (CoT), generating intermediate steps token-by-token. Latent CoT offers an alternative: it performs multi-step reasoning in the model's hidden states, replacing decoded tokens with continuous representations for greater efficiency. However, existing latent CoT methods underperform explicit CoT beyond 1B parameters, and the gap widens with scale. Looped, or recurrent-depth, Transformers, which reuse their weights to increase computation depth without adding parameters, are a natural fit for latent reasoning. We therefore ask whether looped Transformers can bridge this gap. We answer affirmatively with a simple recipe: a looped padded Transformer that processes K latent blocks in parallel for R iterations, with a cross-entropy loss on each latent position's gold CoT-step token, similar to explicit CoT supervision. We instantiate it as LOTUS (Looped Transformers with parallel supervision on latents). LOTUS is, to our knowledge, the first latent-CoT method to bridge the gap to explicit CoT at the 3B scale, while cutting thought-phase latency by 2.5x-6.9x from compact math expressions to natural language. Projecting LOTUS's post-loop latents through the base LM head recovers the gold reasoning steps and even surfaces alternative valid intermediate steps, evidence that its latent space is interpretable and CoT-aligned. Ablations confirm that both the looped backbone and the parallel supervision on gold CoT tokens are essential. Code is available at https://github.com/yingfan-bot/lotus.
Decarbonizing Singapore's Data Centers Using Sumatra's Geothermal Resources(w.media)
This issue of CCSI Investment Perspectives was contributed by Aniruddha Pravin Jaydeokar. He is a Researcher at the Columbia Center on Sustainable Investment with a focus on leveraging innovative financial structures and instruments to drive systems-level change in mining and energy value chains, as well as in the decarbonization of hard-to-abate sectors. He has done prior research in geothermal energy across Southeast Asia and North America.
New Clues on Colorectal Cancer Among Young Adults(microwavenews.com)
It’s a long-running medical mystery: Why have so many people under 50 in affluent countries been developing colorectal cancer in recent decades?Something new is triggering a jump in what’s known as early-onset colon and rectal cancer (EOCRC). The rates have been going up for the last 20 years and no one knows why it’s happening.