Investment Analysis

The US three month T-bill rate went negative today (it's her first time). If I wanted to, hypothetically, for arguments sake, say possibly, I could give the US government a thousand dolla-dolla bills today and they would guarantee to pay me back in three months time about 975 bucks...
Now what I want to know is what's going on here? Sure negative payouts don't sound that attractive but who's to say? These are confusing times. There is no right and wrong just the eternal money dance. The mystical money muzurka.