For protection, in Windows 7, if you attempt to open the MFT via an Administrator Command Prompt, the system will BSoD with an error code of 0x24 (NTFS_FILE_SYSTEM). In Windows 8, running the same command will bring up an Open File dialogue, but all programs will show Access Denied errors.
What does impasse mean in Urban Dictionary?: a spot of which any further development is made. by Adaline Report definition.
Imp (noun) something added to, or united with, another, to lengthen it out or repair it, -- as, an addition to a beehive; a feather inserted in a broken wing of a bird; a length of twisted hair in a fishing line. Imp (noun) to graft; to insert as a scion. Imp (noun) to graft with new feathers, as a wing; to splice a broken feather. Hence, Fig.: