Texts with >> prefix

[nonPointer]

[00:46:54.480 --> 00:46:59.380]   And then the back ends, we have our Rust back end, which is open source.
[00:46:59.380 --> 00:47:07.480]   And then once our little pet project, RISC-V ASIC thing becomes a reality, then that will
[00:47:07.480 --> 00:47:09.400]   be open source as well.
[00:47:09.400 --> 00:47:13.120]   >> Wow, great.
[00:47:13.120 --> 00:47:17.680]   >> All righty.
[00:47:17.680 --> 00:47:23.680]   So what I'm going to show now is a slightly -- okay, and we have nine minutes, so I'll

As shown above, why is there a double > mark at the beginning of some outputs? Thanks!