Lean already produces performance comparable to Haskell and OCaml. When higher performance is essential, Lean models can be translated into efficient imperative code embedded in Lean, with clean semantics and without C’s undefined behavior. We are actively working on closing the remaining gap for performance-critical code. The real comparison is not Lean versus C. It is verified code versus unverified code.
The price of oil grabs most of the energy-related attention during conflicts in the Middle East for understandable reasons: oil is the commodity on which the world runs (still) and analysts have roughly reliable models for what every $10 per barrel increase in cost does to global growth and inflation.
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“冲突持续”假设下，第二轮谁接棒？在“战争拖长、霍尔木兹海峡长期不畅”的情景假设下，除了已经明显涨价的甲醇、LPG、硫磺、国际尿素外，部分目前仅处于情绪预热或温和跟涨的品种，将逐步进入第二轮、更具结构性的涨价周期，典型代表是硫磺的二次冲击、聚烯烃系统抬升，以及乙二醇的成本托底与补涨机会。
Eva helped a lot when we were figuring out the control design, and was kind enough to let me take over a corner of the hub semi-permanently, both for building the cabinet and now as its permanent home. They also showed me the Wondercab, an open-source arcade cabinet design, which influenced how we thought about the controls.