diff --git a/go/react/react.go b/go/react/react.go
index e042293..29293c2 100644
--- a/go/react/react.go
+++ b/go/react/react.go
@@ -1,5 +1,7 @@
 package react
 
+import "strconv"
+
 const testVersion = 4
 
 // MyReactor implements Reactor
@@ -18,6 +20,7 @@ func New() *MyReactor {
 func (r *MyReactor) CreateInput(i int) InputCell {
 	r.lastId++
 	ic := MyCell{val: i, id: r.lastId}
+	ic.previousVal = ic.Value()
 	return &ic
 }
 
@@ -27,6 +30,7 @@ func (r *MyReactor) CreateCompute1(c Cell, f func(int) int) ComputeCell {
 	r.lastId++
 	cc := &MyCell{id: r.lastId, isComputed: true}
 	cc.compVal = func() int { return f(c.Value()) }
+	cc.previousVal = cc.Value()
 	c.(*MyCell).addDependent(cc)
 	return cc
 }
@@ -37,6 +41,7 @@ func (r *MyReactor) CreateCompute2(c1, c2 Cell, f func(int, int) int) ComputeCel
 	r.lastId++
 	cc := &MyCell{id: r.lastId, isComputed: true}
 	cc.compVal = func() int { return f(c1.Value(), c2.Value()) }
+	cc.previousVal = cc.Value()
 	c1.(*MyCell).addDependent(cc)
 	c2.(*MyCell).addDependent(cc)
 	return cc
@@ -73,8 +78,13 @@ func (c *MyCell) SetValue(i int) {
 	c.updated()
 }
 
+func i(v int) string {
+	return strconv.Itoa(v)
+}
+
 func (c *MyCell) updated() {
 	if c.Value() == c.previousVal {
+		// Value didn't change, done.
 		return
 	}
 	c.previousVal = c.Value()