anchor.diff:  }
   
   class _FindExperimentsPageState extends State<FindExperimentsPage> {
  +  bool _isLoading = true;
  +
     @override
     Widget build(BuildContext context) {
  +    Widget _loadingWidget = Center(
  +      child: Padding(
  +        padding: EdgeInsets.only(top: 16.0),
  +        child: CircularProgressIndicator(),
  +      ),
  +    );
  +
       return TaqoScaffold(
         title: 'Find Experiments to Join',
         body: Container(
  
positive.code: import 'package:provider/provider.dart';
  
  import 'package:taqo_common/model/experiment.dart';
  import '../net/google_auth.dart';
  import '../service/experiment_service.dart';
  import '../widgets/taqo_page.dart';
  import '../widgets/taqo_widgets.dart';
  
negative.code:             Expanded(
                child: FutureProvider<List<Experiment>>(
                  create: (_) => ExperimentService.getInstance().then(
                    (service) => service.getExperimentsFromServer().then((v) {
                      setState(() {
                        _isLoading = false;
                      });
                      return v;
                    })),
                  child: _isLoading ? _loadingWidget : ExperimentList(),
                ),
              ),
            ],
  