document.write("«&nbsp;<a href='/news/view?id=148239'>Flying Cars, Bullet Trains, and Moon Shots: 2019’s Top Tech Quick Hits</a>");document.write(" | ");document.write("<a href='/news/view?id=148241'>Fra\"iss\'e Limits for Relational Metric Structures. (arXiv:1901.02122v1 [math.LO])</a>&nbsp;»");