论文标题
世界船：可行性和理由
World ships: Feasibility and Rationale
论文作者
论文摘要
世界船只是假设的，大型，独立的航天器，用于船员星际旅行，花了几个世纪才能到达其他恒星。由于他们的机构，大小和长途旅行时间，与星际探针相比，世界船的可行性面临着额外的挑战。尽管它们在1980年代出现，但这些主题中的大多数仍未开发。本文重新讨论了世界船只的一些关键可行性问题。首先，对文献的世界船只的定义进行了重新审视，而世界船的概念则在类似概念（例如代船）方面定位。其次，根据文献的最新结果，重新研究了人口规模的关键问题。第三，评估了社会技术和经济可行性问题。最后，将世界船与船员星际旅行的潜在替代模式进行了比较。世界船只的主要障碍是所需的大量资源，将其经济可行性转移到了2300年之后，并且能够开发能够检测，更换和修复每秒几个组件的维护系统。在较早的时间点，替代性，成本较低的船员星际旅行的出现可能会使世界船只过时。
World ships are hypothetical, large, self-contained spacecraft for crewed interstellar travel, taking centuries to reach other stars. Due to their crewed nature, size, and long trip times, the feasibility of world ships faces an additional set of challenges compared to interstellar probes. Despite their emergence in the 1980s, most of these topics remain unexplored. This article revisits some of the key feasibility issues of world ships. First, definitions of world ships from the literature are revisited and the notion of world ship positioned with respect to similar concepts such as generation ships. Second, the key question of population size is revisited in light of recent results from the literature. Third, socio-technical and economic feasibility issues are evaluated. Finally, world ships are compared to potential alternative modes of crewed interstellar travel. Key roadblocks for world ships are the considerable resources required, shifting its economic feasibility beyond the year 2300, and the development of a maintenance system capable of detecting, replacing, and repairing several components per second. The emergence of alternative, less costly modes of crewed interstellar travel at an earlier point in time might render world ships obsolete.
