Revert "Revert "dead""

This reverts commit dc2bbef10670547186639e0cb639942b31c261e7.
Revert "Revert "dead""

This reverts commit 70012cb1eadad72021a8f9e90955eb9ad070eda1.
Revert "Revert "Revert "dead"""

This reverts commit 36043d547b86ed00d0acf6aab4b9ea03a6b32b7a.
Revert "Revert "Revert "dead"""

This reverts commit 8e8b6c2104ddf9aafbc2649b3c0e5f6547fa6ee4.
Revert "Revert "dead""

This reverts commit dc2bbef10670547186639e0cb639942b31c261e7.
Revert "Revert "dead""

This reverts commit 70012cb1eadad72021a8f9e90955eb9ad070eda1.
Revert "dead"

This reverts commit d57de79c41966f8e5b69194168bf4529314d1cc5.
Revert "dead"

This reverts commit 2707616d392f1a2b4ccbdaaa8d7b05e941186f9f.
Revert "no std dev"

This reverts commit 9628c2497fb9ba43bf4ada90c3e5ddf82fa9f1e5.