diff --git a/src/Static.jl b/src/Static.jl
index 82ab248..4a79800 100644
--- a/src/Static.jl
+++ b/src/Static.jl
@@ -3,7 +3,7 @@ module Static
 import IfElse: ifelse
 
 export StaticInt, StaticFloat64, StaticSymbol, True, False, StaticBool, NDIndex
-export dynamic, is_static, known, static, static_promote
+export dynamic, is_static, known, static, static_promote, static_!
 
 """
     StaticSymbol
@@ -315,7 +315,6 @@ Base.inv(x::StaticNumber{N}) where {N} = one(x) / x
 @inline Base.iseven(@nospecialize x::StaticNumber) = iseven(known(x))
 @inline Base.isodd(@nospecialize x::StaticNumber) = isodd(known(x))
 
-
 Base.AbstractFloat(x::StaticNumber) = StaticFloat64(x)
 
 Base.abs(::StaticNumber{N}) where {N} = static(abs(N))
@@ -423,8 +422,13 @@ Base.xor(::StaticInteger{X}, ::StaticInteger{Y}) where {X, Y} = static(xor(X, Y)
 Base.xor(::StaticInteger{X}, y::Union{Integer, Missing}) where {X} = xor(X, y)
 Base.xor(x::Union{Integer, Missing}, ::StaticInteger{Y}) where {Y} = xor(x, Y)
 
-Base.:(!)(::True) = False()
-Base.:(!)(::False) = True()
+# These are heavily invalidating, leading to major compile time increases downstream
+#Base.:(!)(::True) = False()
+#Base.:(!)(::False) = True()
+# Instead, use the not invalidating form
+static_!(x::Bool) = !x
+static_!(::True) = False()
+static_!(::False) = True()
 
 Base.all(::Tuple{Vararg{True}}) = true
 Base.all(::Tuple{Vararg{Union{True, False}}}) = false
@@ -745,7 +749,7 @@ end
 """
     eq(x, y)
 
-Equivalent to `!=` but if `x` and `y` are both static returns a `StaticBool.
+Equivalent to `!=` but if `x` and `y` are both static returns a `StaticBool`.
 """
 eq(x::X, y::Y) where {X, Y} = ifelse(is_static(X) & is_static(Y), static, identity)(x == y)
 eq(x) = Base.Fix2(eq, x)
@@ -753,15 +757,15 @@ eq(x) = Base.Fix2(eq, x)
 """
     ne(x, y)
 
-Equivalent to `!=` but if `x` and `y` are both static returns a `StaticBool.
+Equivalent to `!=` but if `x` and `y` are both static returns a `StaticBool`.
 """
-ne(x::X, y::Y) where {X, Y} = !eq(x, y)
+ne(x::X, y::Y) where {X, Y} = ifelse(is_static(X) & is_static(Y), static, identity)(x != y)
 ne(x) = Base.Fix2(ne, x)
 
 """
     gt(x, y)
 
-Equivalent to `>` but if `x` and `y` are both static returns a `StaticBool.
+Equivalent to `>` but if `x` and `y` are both static returns a `StaticBool`.
 """
 gt(x::X, y::Y) where {X, Y} = ifelse(is_static(X) & is_static(Y), static, identity)(x > y)
 gt(x) = Base.Fix2(gt, x)
@@ -769,7 +773,7 @@ gt(x) = Base.Fix2(gt, x)
 """
     ge(x, y)
 
-Equivalent to `>=` but if `x` and `y` are both static returns a `StaticBool.
+Equivalent to `>=` but if `x` and `y` are both static returns a `StaticBool`.
 """
 ge(x::X, y::Y) where {X, Y} = ifelse(is_static(X) & is_static(Y), static, identity)(x >= y)
 ge(x) = Base.Fix2(ge, x)
@@ -777,7 +781,7 @@ ge(x) = Base.Fix2(ge, x)
 """
     le(x, y)
 
-Equivalent to `<=` but if `x` and `y` are both static returns a `StaticBool.
+Equivalent to `<=` but if `x` and `y` are both static returns a `StaticBool`.
 """
 le(x::X, y::Y) where {X, Y} = ifelse(is_static(X) & is_static(Y), static, identity)(x <= y)
 le(x) = Base.Fix2(le, x)
@@ -785,7 +789,7 @@ le(x) = Base.Fix2(le, x)
 """
     lt(x, y)
 
-Equivalent to `<` but if `x` and `y` are both static returns a `StaticBool.
+Equivalent to `<` but if `x` and `y` are both static returns a `StaticBool`.
 """
 lt(x::X, y::Y) where {X, Y} = ifelse(is_static(X) & is_static(Y), static, identity)(x < y)
 lt(x) = Base.Fix2(lt, x)
diff --git a/test/runtests.jl b/test/runtests.jl
index 502ee35..4a52ced 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -117,8 +117,6 @@ end
 
     @test @inferred(~t) === f
     @test @inferred(~f) === t
-    @test @inferred(!t) === f
-    @test @inferred(!f) === t
     @test @inferred(+t) === StaticInt(1)
     @test @inferred(+f) === StaticInt(0)
     @test @inferred(-t) === StaticInt(-1)