The Mad Mathematician

Perhaps you can try someone else's computer.

1. Cộng đồng
2. Technical Issues and Workarounds
3. I'm not able to sign into one of my two accounts.

You can copy an emoji and paste it in your username.

1. Cộng đồng
2. Technical Issues and Workarounds
3. I cannot put emojis in my name.

No! Picking up steam is my main source of badges!

1. Cộng đồng
2. General Khan Academy Questions
3. Recently-retired Badges (December 2020)