diff -r bea0c3841ced -r b4a47e8e80d1 src/instance.rs
--- a/src/instance.rs	Wed Sep 03 09:16:03 2025 -0500
+++ b/src/instance.rs	Wed Sep 03 09:52:30 2025 -0500
@@ -193,7 +193,7 @@
 #[derive(Copy, Clone, Debug)]
 pub struct BasicDecomposition;
 
-impl<X: Space + Clone> Decomposition<X> for BasicDecomposition {
+impl<X: Space> Decomposition<X> for BasicDecomposition {
     type Decomposition<'b>
         = MyCow<'b, X>
     where
@@ -282,7 +282,7 @@
     }
 }
 
-impl<X: Space + Clone> Instance<X, BasicDecomposition> for X {
+impl<X: Space> Instance<X, BasicDecomposition> for X {
     #[inline]
     fn eval_decompose<'b, R>(self, f: impl FnOnce(MyCow<'b, X>) -> R) -> R
     where
@@ -302,7 +302,7 @@
     }
 }
 
-impl<'a, X: Space + Clone> Instance<X, BasicDecomposition> for &'a X {
+impl<'a, X: Space> Instance<X, BasicDecomposition> for &'a X {
     #[inline]
     fn eval_decompose<'b, R>(self, f: impl FnOnce(MyCow<'b, X>) -> R) -> R
     where
@@ -322,7 +322,7 @@
     }
 }
 
-impl<'a, X: Space + Clone> Instance<X, BasicDecomposition> for &'a mut X {
+impl<'a, X: Space> Instance<X, BasicDecomposition> for &'a mut X {
     #[inline]
     fn eval_decompose<'b, R>(self, f: impl FnOnce(MyCow<'b, X>) -> R) -> R
     where
@@ -342,7 +342,7 @@
     }
 }
 
-impl<'a, X: Space + Clone> Instance<X, BasicDecomposition> for MyCow<'a, X> {
+impl<'a, X: Space> Instance<X, BasicDecomposition> for MyCow<'a, X> {
     #[inline]
     fn eval_decompose<'b, R>(self, f: impl FnOnce(MyCow<'b, X>) -> R) -> R
     where