as far as I can see
Also, so far as I can see. According to my judgment or understanding, as in As far as I can see you've got an excellent chance of getting that job. This idiom was first recorded in 1577.
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.