Paper Links Tokenization to Cross-Lingual Transfer Failures

The official alphaXiv account posted about the paper “Why Pretraining Fails to Share Cross-Lingual Knowledge.” The post states that knowledge learned in one language sometimes barely transfers to another. It reports that the failure begins during pretraining and that disjoint token spaces alone can cause the issue, even when comparing two otherwise identical copies of English. The account also generated the headline “Study Shows Tokenization Bottleneck Limits Cross-Ling…” No further details or independent confirmations appear in the packet.