I think its pretty clearly that the glass tiles he was talking about would not be ablative. Given how many reuses they should be able to do. Starship has the a

I think its pretty clearly that the glass tiles he was talking about would not be ablative. Given how many reuses they should be able to do. Starship has the ability to dip in and out to control heating on the tile and limit the heat, keeping them within a heat corridor during reentry.