So Peter can only absorb one power at a time.
And Hiro can stop time, but he cannot travel through it.
The altering of various abilities has left a few Heroes fans confused; but in a new interview with TV Guide, Masi Oka tries to explain what the show is doing.
"There are basically two directions," said Oka. "A lot of people are getting new levels to their powers. Like Matt Parkman, who can now draw the future. But people like Peter and Sylar perhaps have become too powerful, so they're trying to scale it back down."