How do you figure 7% per second? Depending upon which inflation figure in the article is accurate, the rate would be 4% or 11.5% per day. Worthless for any long-term holding, but if someone collects his wages and spends them within a day or two, they would still have the vast majority of their value.
If the value of currency were diminishing at a rate of 7% per hour, that would translate into 507%/day, 8,639,222%/week, or 322,793,860,257,058,127,513,406%/month. A figure of 7% per second would seem nonsensical.
Check your math.