https://commons.wikimedia.org/wiki/File:Square_number_16_as_sum_of_gnomons.svg

• visualization
numbers can be represented by lego bricks, marbles, dominoes, lines, areas, etc. (unary numbers?)
there may be limitations.

perfect squares are the sum of odd numbers
1 + 3 + … + (2n - 1) = n²
#math

• definitional problems
is 0 a natural number, is 1 prime, what is 0⁰, is a square a rectangle, π vs. τ = 2π, etc.

i think these aren't purely math problems, but a matter of words. none of them can be proven. yet they're helpful for understanding math and history.
#math

i found it difficult to start by researching why does 1+1=2 or what are numbers. pretend you know the “obvious”, like addition, and skip if it's too hard, like division.
#math

• math in anime
solving school math problems in anime.
you can learn the basics like (a + b)² = a² + 2ab + b².

i got interested in math after watching baka & test and founded this discipline in 2010.
#math

a social media where you can't delete posts.
atelophobes (perfectionists) need it.
like you can't delete after 24 hours.
#ideas

an intro page service¹ with no input fields.
just select age, pronouns, etc. and link X account.
people directory.
friend finder.

¹ like https://carrd.co, https://rentry.co, https://straw.page, https://pronouns.page, or https://linktr.ee
#ideas

a school in the internet age.
i don't think we need school at all. X plays the role of a school.

i created Wikinder, a wiki that calls itself a “kindergarten”.
https://wikinder.org

#ideas #unschooling