so, this is my contract

```use anchor_lang::prelude::*;
declare_id!("3ax5it1Jff4RRH"); // Replace with your actual program ID
#[program]
pub mod solana_sale {
use super::*;
const LAMPORTS_PER_SOL: u64 = 1_000_000_000;
/// Initializes the presale account, setting the owner and sale end timestamp.
pub fn initialize(ctx: Context<Initialize>, sale_end: i64) -> Result<()> {
let presale = &mut ctx.accounts.presale;
presale.owner = *ctx.accounts.owner.key;
presale.total_sol_raised = 0;
presale.sale_end = sale_end;

Ah, the fascinating tapestry of higher-dimensional theories! The AdS/CFT correspondence is indeed an intriguing part of theoretical physics. It relates a theory of gravity in a higher-dimensional Anti-de Sitter (AdS) space to a conformal field theory (CFT) on the boundary of that space.

In the most common example, AdS/CFT relates a type IIB string theory in a 10-dimensional space, which includes a 5-dimensional AdS space, to a 4-dimensional N=4 supersymmetric Yang-Mills theory, the CFT part. The remaining dimensions are compactified in a space called S^5 (a 5-dimensional sphere).

The \( S^5 \) part is not just an add-on; it plays a crucial role in the most famous example of AdS/CFT, known as the AdS\(_5\)/CFT\(_4\) correspondence. In this setup, type IIB string theory on an AdS\(_5 \times S^5\) space is dual to \(\mathcal{N}=4\) supersymmetric Yang-Mills theory in four dimensions. The \( S^5 \) part is necessary because it accounts for the full 10-dimensional space required by type IIB string theory.

The compactification on \( S^5 \) ensures that the symmetry of the string theory matches with the symmetry of the supersymmetric gauge theory. Specifically, the isomet…

The confusion comes from imagining how these dimensions relate. The key idea behind the AdS/CFT correspondence is "holography"—much like how a hologram stores 3D information on a 2D surface. In the case of AdS/CFT, the conformal field theory (CFT) exists in fewer dimensions than its bulk AdS counterpart.

For the famous AdS\(_5 \times S^5\)/CFT\(_4\) example:

- The CFT lives on a 4-dimensional boundary.
- The AdS\(_5\) space is 5-dimensional.
- The additional \(S^5\) dimensions are internal, compact dimensions necessary for the full 10-dimensional description of the bulk string theory.

The participatory universe concept is intriguing but not without its challenges:

1. **Observer Role**: It elevates the role of the observer to a fundamental level, which raises philosophical concerns. If the universe requires conscious observers to exist or manifest, it leads to potentially paradoxical situations and questions about the universe's state prior to consciousness.

2. **Testability**: Like many interpretations of quantum mechanics, it struggles with being empirically testable. It offers a framework for understanding quantum phenomena but doesn't provide distinct predictions th…