原因何在？麥永剛說，因為多數西方管理者，尤其是那些對中國科技進步感到興奮的人，往往會忽略經濟風險。因為中國目前正處於通縮狀態，這種情況至少還會持續好幾年。此外，中國的民族主義情緒、近期的「購買中國貨」口號，加上自2016年起與美國的脫鉤，以及對全球的出口壓力，都讓西方企業很難參與中國規劃的未來。
·盈利性难题：对厂商来说，订阅费要覆盖模型推理、算力、客服成本，利润空间极其有限。对用户来说，如果龙虾干的活不值那么多钱，卸载就是必然。
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I wrote a proof of concept in Rust and put it on GitHub. My test program is rendering a very simple scene, but the results are very encouraging. With the recursive algorithm, it's possible to render this object with 3 to 4x fewer rays per pixel, and more than tripling the frame rate. The benefit may not be as much for more crowded scenes with less empty space or when rendering fractals. However, I think there's still a clear benefit given that a lot of the scenes people tend to render (e.g. games) do fit the pattern where there is a lot of empty space and world surfaces are relatively flat.