The news: IBM announced detailed plans today to build an error-corrected quantum computer with significantly more computational capability than existing machines by 2028. It hopes to make the computer available to users via the cloud by 2029. Why it matters: IBM claims Starling will be a leap forward in quantum computing. If Starling achieves this, IBM will have solved arguably the biggest technical hurdle facing the industry today. Here’s how defense tech companies stand to gain (and the rest of us may stand to lose).