@@ -228,9 +228,9 @@
 			return theID;
 		}
 		override Value eval_( Die e, Table ctx, bool ctxMod )
 		{
-			return new BottomValue;
+			return this.lift(new BottomValue, ctx, e.pos);
 		}
 		override Value eval_( Str e, Table ctx, bool ctxMod )
 		{
 			return this.lift(super.eval_(e,ctx,ctxMod), ctx, e.pos);
@@ -414,21 +414,20 @@
 				// automatic memoized co-recursive execution
 				MemokeyType memokey = new MemokeyType(cast(void*)ast, lay, ctx);
 				if(auto p = memokey in memo)
 				{
-					(*p)[1] ++;
-					return (*p)[0];
+					if( ++(*p)[1] >= 2 ) // [TODO] is 2 really enough??
+						return (*p)[0];
 				}
-				else {
+				else
+				{
 					Value v;
 					try { v = evlay.lift(new BottomValue, ctx, pos); } catch { v = new BottomValue; }
 					memo[memokey] = tuple(v, 0);
 				}
 
 				Value r = nonMemoizedRun();
-
-				int touched = memo[memokey][1];
-				memo[memokey] = tuple(r, 12345678);
+				memo[memokey] = tuple(r, 9999);
 				return r;
 			}
 		}
 		return new UserDefinedFunValue(e,ctx);