diff --git a/README.md b/README.md
index 369d944..fd78789 100644
--- a/README.md
+++ b/README.md
@@ -32,8 +32,8 @@ Use `!matrixgpt` to view the bot's help. The bot also responds to `!bots`.
 <br>
 
 - Don't try to use two bots in the same thread.
-- You can DM a bot for a private chat. Don't use the trigger prefix in a DM.
-- The bot will move its read marker when a new message is sent in the room.
+- You can DM a bot for a private chat.
+- The bot will move its read marker whenever a message is sent in the room.
 
 <br>
 
diff --git a/matrix_gpt/__init__.py b/matrix_gpt/__init__.py
index 261eeec..26aada3 100644
--- a/matrix_gpt/__init__.py
+++ b/matrix_gpt/__init__.py
@@ -1 +1 @@
-from .matrix import MatrixClientHelper
\ No newline at end of file
+from .matrix_helper import MatrixClientHelper
\ No newline at end of file
diff --git a/matrix_gpt/callbacks.py b/matrix_gpt/callbacks.py
index 1fd0f66..d7039ee 100644
--- a/matrix_gpt/callbacks.py
+++ b/matrix_gpt/callbacks.py
@@ -7,7 +7,7 @@ from nio import (AsyncClient, InviteMemberEvent, MatrixRoom, MegolmEvent, RoomMe
 from .chat_functions import check_authorized, is_thread, check_command_prefix
 from .config import global_config
 from .handle_actions import do_reply_msg, do_reply_threaded_msg, do_join_channel, sound_off
-from .matrix import MatrixClientHelper
+from .matrix_helper import MatrixClientHelper
 
 
 class MatrixBotCallbacks:
@@ -16,6 +16,7 @@ class MatrixBotCallbacks:
         self.client: AsyncClient = client.client
         self.logger = logging.getLogger('MatrixGPT').getChild('MatrixBotCallbacks')
         self.startup_ts = time.time() * 1000
+        self.seen_messages = set()
 
     async def handle_message(self, room: MatrixRoom, requestor_event: RoomMessageText) -> None:
         """
@@ -23,7 +24,6 @@ class MatrixBotCallbacks:
         """
         # Mark all messages as read.
         mark_read_task = asyncio.create_task(self.client.room_read_markers(room.room_id, requestor_event.event_id, requestor_event.event_id))
-
         msg = requestor_event.body.strip().strip('\n')
         if msg == "** Unable to decrypt: The sender's device has not sent us the keys for this message. **":
             self.logger.debug(f'Unable to decrypt event "{requestor_event.event_id} in room {room.room_id}')
@@ -36,6 +36,9 @@ class MatrixBotCallbacks:
             self.logger.debug(f'Message from {requestor_event.sender} in {room.room_id} --> "{msg}"')
             await sound_off(room, requestor_event, self.client_helper)
             return
+        if requestor_event.event_id in self.seen_messages:
+            return
+        self.seen_messages.add(requestor_event.event_id)
         command_activated, sent_command_prefix, command_info = check_command_prefix(msg)
 
         if not command_activated and is_thread(requestor_event):
@@ -43,7 +46,7 @@ class MatrixBotCallbacks:
             self.logger.debug(f'Message from {requestor_event.sender} in {room.room_id} --> "{msg}"')
             # Start the task in the background and don't wait for it here or else we'll block everything.
             task = asyncio.create_task(do_reply_threaded_msg(self.client_helper, room, requestor_event))
-        elif (command_activated or room.member_count == 2) and not is_thread(requestor_event):
+        elif command_activated and not is_thread(requestor_event):
             # Everything else
             self.logger.debug(f'Message from {requestor_event.sender} in {room.room_id} --> "{msg}"')
             allowed_to_chat = command_info.allowed_to_chat + global_config['allowed_to_chat']
diff --git a/matrix_gpt/matrix.py b/matrix_gpt/matrix_helper.py
similarity index 100%
rename from matrix_gpt/matrix.py
rename to matrix_gpt/matrix_helper.py